March 2020 - Arch-security - lists.archlinux.org

[ASA-202003-13] bluez: access restriction bypass
by Remi Gacogne 20 Mar '20

20 Mar '20

Arch Linux Security Advisory ASA-202003-13 ========================================== Severity: High Date : 2020-03-19 CVE-ID : CVE-2020-0556 Package : bluez Type : access restriction bypass Remote : Yes Link : https://security.archlinux.org/AVG-1116 Summary ======= The package bluez before version 5.54-1 is vulnerable to access restriction bypass. Resolution ========== Upgrade to 5.54-1. # pacman -Syu "bluez>=5.54-1" The problem has been fixed upstream in version 5.54. Workaround ========== None. Description =========== It was discovered that the HID and HOGP profiles implementations in bluez before 5.54 don't specifically require bonding between the device and the host. This creates an opportunity for a malicious device to connect to a target host to either impersonate an existing HID device without security or to cause an SDP or GATT service discovery to take place which would allow HID reports to be injected to the input subsystem from a non-bonded source. This potentially enables an unauthenticated attacker with adjacent access to impersonate an existing HID device, cause a denial of service or escalate privileges. Impact ====== An unauthenticated attacker with adjacent access can impersonate an existing HID device, or cause a denial of service. References ========== https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-0… https://www.openwall.com/lists/oss-security/2020/03/12/4 https://lore.kernel.org/linux-bluetooth/20200310023516.209146-1-alainm@chro… https://patchwork.kernel.org/patch/11428317/ https://patchwork.kernel.org/patch/11428319/ https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=8cdbd3b09f29d… https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=3cccdbab23240… https://security.archlinux.org/CVE-2020-0556

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[ASA-202003-12] chromium: multiple issues
by Remi Gacogne 20 Mar '20

20 Mar '20

Arch Linux Security Advisory ASA-202003-12 ========================================== Severity: High Date : 2020-03-19 CVE-ID : CVE-2019-20503 CVE-2020-6422 CVE-2020-6424 CVE-2020-6425 CVE-2020-6426 CVE-2020-6427 CVE-2020-6428 CVE-2020-6429 CVE-2020-6449 Package : chromium Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-1118 Summary ======= The package chromium before version 80.0.3987.149-1 is vulnerable to multiple issues including access restriction bypass, arbitrary code execution and information disclosure. Resolution ========== Upgrade to 80.0.3987.149-1. # pacman -Syu "chromium>=80.0.3987.149-1" The problems have been fixed upstream in version 80.0.3987.149. Workaround ========== None. Description =========== - CVE-2019-20503 (information disclosure) An out-of-bounds read has been found in Firefox before 74, Thunderbird before 68.6 and chromium before 80.0.3987.149. The inputs to sctp_load_addresses_from_init are verified by sctp_arethere_unrecognized_parameters; however, the two functions handled parameter bounds differently, resulting in out of bounds reads when parameters are partially outside a chunk. - CVE-2020-6422 (arbitrary code execution) A use-after-free security issue has been found in the WebGL component of the chromium browser before 80.0.3987.149. - CVE-2020-6424 (arbitrary code execution) A use-after-free security issue has been found in the media component of the chromium browser before 80.0.3987.149. - CVE-2020-6425 (access restriction bypass) An insufficient policy enforcement security issue has been found in the extensions component of the chromium browser before 80.0.3987.149. - CVE-2020-6426 (access restriction bypass) An inappropriate implementation security issue has been found in the V8 component of the chromium browser before 80.0.3987.149. - CVE-2020-6427 (arbitrary code execution) A use after free security issue has been found in the audio component of the chromium browser before 80.0.3987.149. - CVE-2020-6428 (arbitrary code execution) A use-after-free security issue has been found in the audio component of the chromium browser before 80.0.3987.149. - CVE-2020-6429 (arbitrary code execution) A use-after-free security issue has been found in the audio component of the chromium browser before 80.0.3987.149. - CVE-2020-6449 (arbitrary code execution) A use-after-free security issue has been found in the audio component of the chromium browser before 80.0.3987.149. Impact ====== A remote attacker can access sensitive information, bypass security measures and possibly execute arbitrary code on the affected host. References ========== https://chromereleases.googleblog.com/2020/03/stable-channel-update-for-des… https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2019-205… https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2019-205… https://bugzilla.mozilla.org/show_bug.cgi?id=1613765 https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-des… https://crbug.com/1059349 https://crbug.com/1051748 https://crbug.com/1031142 https://crbug.com/1031670 https://crbug.com/1052647 https://crbug.com/1055788 https://crbug.com/1057593 https://crbug.com/1057627 https://crbug.com/1059686 https://security.archlinux.org/CVE-2019-20503 https://security.archlinux.org/CVE-2020-6422 https://security.archlinux.org/CVE-2020-6424 https://security.archlinux.org/CVE-2020-6425 https://security.archlinux.org/CVE-2020-6426 https://security.archlinux.org/CVE-2020-6427 https://security.archlinux.org/CVE-2020-6428 https://security.archlinux.org/CVE-2020-6429 https://security.archlinux.org/CVE-2020-6449

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[ASA-202003-11] thunderbird: multiple issues
by Remi Gacogne 16 Mar '20

16 Mar '20

Arch Linux Security Advisory ASA-202003-11 ========================================== Severity: Critical Date : 2020-03-16 CVE-ID : CVE-2019-20503 CVE-2020-6805 CVE-2020-6806 CVE-2020-6807 CVE-2020-6811 CVE-2020-6812 CVE-2020-6814 Package : thunderbird Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-1115 Summary ======= The package thunderbird before version 68.6.0-1 is vulnerable to multiple issues including arbitrary code execution, arbitrary command execution and information disclosure. Resolution ========== Upgrade to 68.6.0-1. # pacman -Syu "thunderbird>=68.6.0-1" The problems have been fixed upstream in version 68.6.0. Workaround ========== None. Description =========== - CVE-2019-20503 (information disclosure) An out-of-bounds read has been found in Firefox before 74 and Thunderbird before 68.6. The inputs to sctp_load_addresses_from_init are verified by sctp_arethere_unrecognized_parameters; however, the two functions handled parameter bounds differently, resulting in out of bounds reads when parameters are partially outside a chunk. - CVE-2020-6805 (arbitrary code execution) A use-after-free issue has been found in Firefox before 74 and Thunderbird before 68.6. When removing data about an origin whose tab was recently closed, a use-after-free could occur in the Quota manager, resulting in a potentially exploitable crash. - CVE-2020-6806 (arbitrary code execution) A state confusion issue has been found in Firefox before 74 and Thunderbird before 68.6, in BodyStream::OnInputStreamReady. By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. - CVE-2020-6807 (arbitrary code execution) A use-after-free issue has been found in Firefox before 74 and Thunderbird before 68.6, in cubeb during stream destruction. When a device was changed while a stream was about to be destroyed, the stream-reinit task may have been executed after the stream was destroyed, causing a use-after-free and a potentially exploitable crash. - CVE-2020-6811 (arbitrary command execution) A security issue has been found in Firefox before 74 and Thunderbird before 68.6, where the 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP method of a request, which can be controlled by the website. If a user used the 'Copy as Curl' feature and pasted the command into a terminal, it could have resulted in command injection and arbitrary command execution. - CVE-2020-6812 (information disclosure) An information disclosure issue has been found in Firefox before 74 and Thunderbird before 68.6. The first time AirPods are connected to an iPhone, they become named after the user's name by default (e.g. Jane Doe's AirPods.) Websites with camera or microphone permission are able to enumerate device names, disclosing the user's name. To resolve this issue, Firefox added a special case that renames devices containing the substring 'AirPods' to simply 'AirPods'. - CVE-2020-6814 (arbitrary code execution) Several memory safety and script safety bugs have been found in Firefox before 74, Firefox ESR before 68.6 and Thunderbird before 68.6. Some of these bugs showed evidence of memory corruption or escalation of privilege and Mozilla presumes that with enough effort some of these could have been exploited to run arbitrary code. Impact ====== A remote attacker can access sensitive information and execute arbitrary commands and code on the affected host. References ========== https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/ https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2019-205… https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2019-205… https://bugzilla.mozilla.org/show_bug.cgi?id=1613765 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6805 https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2020-6805 https://bugzilla.mozilla.org/show_bug.cgi?id=1610880 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6806 https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2020-6806 https://bugzilla.mozilla.org/show_bug.cgi?id=1612308 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6807 https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2020-6807 https://bugzilla.mozilla.org/show_bug.cgi?id=1614971 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6811 https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2020-6811 https://bugzilla.mozilla.org/show_bug.cgi?id=1607742 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6812 https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2020-6812 https://bugzilla.mozilla.org/show_bug.cgi?id=1616661 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6814 https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2020-6814 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1592078%2C1604847%2C1608256… https://security.archlinux.org/CVE-2019-20503 https://security.archlinux.org/CVE-2020-6805 https://security.archlinux.org/CVE-2020-6806 https://security.archlinux.org/CVE-2020-6807 https://security.archlinux.org/CVE-2020-6811 https://security.archlinux.org/CVE-2020-6812 https://security.archlinux.org/CVE-2020-6814

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[ASA-202003-10] okular: arbitrary command execution
by Remi Gacogne 16 Mar '20

16 Mar '20

Arch Linux Security Advisory ASA-202003-10 ========================================== Severity: Low Date : 2020-03-13 CVE-ID : CVE-2020-9359 Package : okular Type : arbitrary command execution Remote : Yes Link : https://security.archlinux.org/AVG-1113 Summary ======= The package okular before version 19.12.3-3 is vulnerable to arbitrary command execution. Resolution ========== Upgrade to 19.12.3-3. # pacman -Syu "okular>=19.12.3-3" The problem has been fixed upstream but no release is available yet. Workaround ========== None. Description =========== A security issue has been found in Okular before 1.10.0, that can be tricked into executing local binaries via specially crafted PDF files. This binary execution can require almost no user interaction. No parameters can be passed to those local binaries. Impact ====== A remote attacker can execute an arbitrary command by tricking a local user into opening a specially crafted PDF document. References ========== https://kde.org/info/security/advisory-20200312-1.txt https://invent.kde.org/kde/okular/-/commit/6a93a033b4f9248b3cd4d04689b8391d… https://security.archlinux.org/CVE-2020-9359

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[ASA-202003-9] webkit2gtk: arbitrary code execution
by Remi Gacogne 16 Mar '20

16 Mar '20

Arch Linux Security Advisory ASA-202003-9 ========================================= Severity: Critical Date : 2020-03-13 CVE-ID : CVE-2020-10018 Package : webkit2gtk Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-1114 Summary ======= The package webkit2gtk before version 2.28.0-1 is vulnerable to arbitrary code execution. Resolution ========== Upgrade to 2.28.0-1. # pacman -Syu "webkit2gtk>=2.28.0-1" The problem has been fixed upstream in version 2.28.0. Workaround ========== None. Description =========== A use-after-free has been found in WebKitGTK before 2.28.0, where processing maliciously crafted web content may lead to arbitrary code execution. Impact ====== A remote attacker can execute arbitrary code via specially crafted web content. References ========== https://webkitgtk.org/security/WSA-2020-0003.html https://security.archlinux.org/CVE-2020-10018

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[ASA-202003-8] firefox: multiple issues
by Morten Linderud 12 Mar '20

12 Mar '20

Arch Linux Security Advisory ASA-202003-8 ========================================= Severity: Critical Date : 2020-03-11 CVE-ID : CVE-2019-20503 CVE-2020-6805 CVE-2020-6806 CVE-2020-6807 CVE-2020-6808 CVE-2020-6809 CVE-2020-6810 CVE-2020-6811 CVE-2020-6812 CVE-2020-6813 CVE-2020-6814 CVE-2020-6815 Package : firefox Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-1112 Summary ======= The package firefox before version 74.0-1 is vulnerable to multiple issues including arbitrary code execution, access restriction bypass, arbitrary command execution, content spoofing and information disclosure. Resolution ========== Upgrade to 74.0-1. # pacman -Syu "firefox>=74.0-1" The problems have been fixed upstream in version 74.0. Workaround ========== None. Description =========== - CVE-2019-20503 (information disclosure) An out-of-bounds read has been found in Firefox before 74. The inputs to sctp_load_addresses_from_init are verified by sctp_arethere_unrecognized_parameters; however, the two functions handled parameter bounds differently, resulting in out of bounds reads when parameters are partially outside a chunk. - CVE-2020-6805 (arbitrary code execution) A use-after-free issue has been found in Firefox before 74. When removing data about an origin whose tab was recently closed, a use- after-free could occur in the Quota manager, resulting in a potentially exploitable crash. - CVE-2020-6806 (arbitrary code execution) A state confusion issue has been found in Firefox before 74, in BodyStream::OnInputStreamReady. By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. - CVE-2020-6807 (arbitrary code execution) A use-after-free issue has been found in Firefox before 74, in cubeb during stream destruction. When a device was changed while a stream was about to be destroyed, the stream-reinit task may have been executed after the stream was destroyed, causing a use-after-free and a potentially exploitable crash. - CVE-2020-6808 (content spoofing) A security issue has been found in Firefox before 74 where, when a JavaScript URL (javascript:) is evaluated and the result is a string, this string is parsed to create an HTML document, which is then presented. Previously, this document's URL (as reported by the document.location property, for example) was the originating javascript: URL which could lead to spoofing attacks; it is now correctly the URL of the originating document. - CVE-2020-6809 (access restriction bypass) A security issue has been found in Firefox before 74 where, when a Web Extension had the all-urls permission and made a fetch request with a mode set to 'same-origin', it was possible for the Web Extension to read local files. - CVE-2020-6810 (content spoofing) A security issue has been found in Firefox before 74 where, after a website had entered fullscreen mode, it could have used a previously opened popup to obscure the notification that indicates the browser is in fullscreen mode. Combined with spoofing the browser chrome, this could have led to confusing the user about the current origin of the page and credential theft or other attacks. - CVE-2020-6811 (arbitrary command execution) A security issue has been found in Firefox before 74, where the 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP method of a request, which can be controlled by the website. If a user used the 'Copy as Curl' feature and pasted the command into a terminal, it could have resulted in command injection and arbitrary command execution. - CVE-2020-6812 (information disclosure) An information disclosure issue has been found in Firefox before 74. The first time AirPods are connected to an iPhone, they become named after the user's name by default (e.g. Jane Doe's AirPods.) Websites with camera or microphone permission are able to enumerate device names, disclosing the user's name. To resolve this issue, Firefox added a special case that renames devices containing the substring 'AirPods' to simply 'AirPods'. - CVE-2020-6813 (access restriction bypass) A Content Security Policy bypass has been found in Firefox before 74. When protecting CSS blocks with the nonce feature of Content Security Policy, the @import statement in the CSS block could allow an attacker to inject arbitrary styles, bypassing the intent of the Content Security Policy. - CVE-2020-6814 (arbitrary code execution) Several memory safety and script safety bugs have been found in Firefox before 74 and Firefox ESR before 68.6. Some of these bugs showed evidence of memory corruption or escalation of privilege and Mozilla presumes that with enough effort some of these could have been exploited to run arbitrary code. - CVE-2020-6815 (arbitrary code execution) Several memory safety and script safety bugs have been found in Firefox before 74. Some of these bugs showed evidence of memory corruption or escalation of privilege and Mozilla presumes that with enough effort some of these could have been exploited to run arbitrary code. Impact ====== A remote attacker might be able to access sensitive information, bypass security restrictions and execute arbitrary code and commands on the affected host. References ========== https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/ https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2019-205… https://bugzilla.mozilla.org/show_bug.cgi?id=1613765 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6805 https://bugzilla.mozilla.org/show_bug.cgi?id=1610880 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6806 https://bugzilla.mozilla.org/show_bug.cgi?id=1612308 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6807 https://bugzilla.mozilla.org/show_bug.cgi?id=1614971 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6808 https://bugzilla.mozilla.org/show_bug.cgi?id=1247968 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6809 https://bugzilla.mozilla.org/show_bug.cgi?id=1420296 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6810 https://bugzilla.mozilla.org/show_bug.cgi?id=1432856 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6811 https://bugzilla.mozilla.org/show_bug.cgi?id=1607742 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6812 https://bugzilla.mozilla.org/show_bug.cgi?id=1616661 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6813 https://bugzilla.mozilla.org/show_bug.cgi?id=1605814 https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6814 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1592078%2C1604847%2C1608256… https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6815 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1181957%2C1557732%2C1557739… https://security.archlinux.org/CVE-2019-20503 https://security.archlinux.org/CVE-2020-6805 https://security.archlinux.org/CVE-2020-6806 https://security.archlinux.org/CVE-2020-6807 https://security.archlinux.org/CVE-2020-6808 https://security.archlinux.org/CVE-2020-6809 https://security.archlinux.org/CVE-2020-6810 https://security.archlinux.org/CVE-2020-6811 https://security.archlinux.org/CVE-2020-6812 https://security.archlinux.org/CVE-2020-6813 https://security.archlinux.org/CVE-2020-6814 https://security.archlinux.org/CVE-2020-6815

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[ASA-202003-7] mbedtls: private key recovery
by Morten Linderud 12 Mar '20

12 Mar '20

Arch Linux Security Advisory ASA-202003-7 ========================================= Severity: High Date : 2020-03-11 CVE-ID : CVE-2019-18222 Package : mbedtls Type : private key recovery Remote : No Link : https://security.archlinux.org/AVG-1104 Summary ======= The package mbedtls before version 2.16.5-1 is vulnerable to private key recovery. Resolution ========== Upgrade to 2.16.5-1. # pacman -Syu "mbedtls>=2.16.5-1" The problem has been fixed upstream in version 2.16.5. Workaround ========== None. Description =========== The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto before 3.0.1 and Mbed TLS before 2.20.0, 2.16.4 or 2.7.13 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks. Impact ====== A local attacker can recover an ECDSA private key via side-channel attacks. References ========== https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advi… https://security.archlinux.org/CVE-2019-18222

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[ASA-202003-6] linux: multiple issues
by Morten Linderud 12 Mar '20

12 Mar '20

Arch Linux Security Advisory ASA-202003-6 ========================================= Severity: High Date : 2020-03-08 CVE-ID : CVE-2020-2732 CVE-2020-9383 Package : linux Type : multiple issues Remote : No Link : https://security.archlinux.org/AVG-1108 Summary ======= The package linux before version 5.5.7.arch1-1 is vulnerable to multiple issues including authentication bypass and information disclosure. Resolution ========== Upgrade to 5.5.7.arch1-1. # pacman -Syu "linux>=5.5.7.arch1-1" The problems have been fixed upstream in version 5.5.7.arch1. Workaround ========== None. Description =========== - CVE-2020-2732 (information disclosure) An issue has been found in KVM before 5.5.7, where vmx_check_intercept ws is not yet fully implemented on Intel processors, causing e.g. the I/O or MSR interception bitmaps not to be checked. This in turn allowed the L2 guest to trick the L0 hypervisor into accessing sensitive information on the L1 hypervisor. - CVE-2020-9383 (authentication bypass) An issue was discovered in the Linux kernel through 5.5.6. set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it, aka CID-2e90ca68b0d2. Impact ====== A local malicious attacker can disclose sensitive information through side-channel cache attacks, or bypass authentication measures by abusing the floppy drivers. References ========== https://www.openwall.com/lists/oss-security/2020/02/25/3 https://www.spinics.net/lists/kvm/msg208259.html https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… https://github.com/torvalds/linux/commit/2e90ca68b0d2f5548804f22f0dd6114551… https://security.archlinux.org/CVE-2020-2732 https://security.archlinux.org/CVE-2020-9383

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[ASA-202003-5] python-django: sql injection
by Morten Linderud 12 Mar '20

12 Mar '20

Arch Linux Security Advisory ASA-202003-5 ========================================= Severity: Medium Date : 2020-03-08 CVE-ID : CVE-2020-9402 Package : python-django Type : sql injection Remote : Yes Link : https://security.archlinux.org/AVG-1111 Summary ======= The package python-django before version 3.0.4-1 is vulnerable to sql injection. Resolution ========== Upgrade to 3.0.4-1. # pacman -Syu "python-django>=3.0.4-1" The problem has been fixed upstream in version 3.0.4. Workaround ========== None. Description =========== A potential SQL injection has been found in Django before 3.0.4, via tolerance parameter in GIS functions and aggregates on Oracle. Impact ====== A remote attacker can alter the database via a SQL injection. References ========== https://docs.djangoproject.com/en/dev/releases/3.0.4/ https://www.openwall.com/lists/oss-security/2020/03/04/1 https://www.djangoproject.com/weblog/2020/mar/04/security-releases/ https://github.com/django/django/commit/26a5cf834526e291db00385dd33d319b827… https://security.archlinux.org/CVE-2020-9402

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[ASA-202003-4] golang-golang-x-crypto: denial of service
by Morten Linderud 12 Mar '20

12 Mar '20

Arch Linux Security Advisory ASA-202003-4 ========================================= Severity: Medium Date : 2020-03-08 CVE-ID : CVE-2020-9283 Package : golang-golang-x-crypto Type : denial of service Remote : Yes Link : https://security.archlinux.org/AVG-1109 Summary ======= The package golang-golang-x-crypto before version 0.0.20200303-1 is vulnerable to denial of service. Resolution ========== Upgrade to 0.0.20200303-1. # pacman -Syu "golang-golang-x-crypto>=0.0.20200303-1" The problem has been fixed upstream in version 0.0.20200303. Workaround ========== None. Description =========== A security issue has been found in golang.org/x/crypto before v0.0.0-20200220183623-bac4c82f6975. An attacker can craft an ssh- ed25519 or sk-ssh-ed25519(a)openssh.com public key, such that the library will panic when trying to verify a signature with it. Clients can deliver such a public key and signature to any golang.org/x/crypto/ssh server with a PublicKeyCallback, and servers can deliver them to any golang.org/x/crypto/ssh client. Impact ====== A remote unauthenticated attacker can serve a malicious SSH public key and crash the service. References ========== https://groups.google.com/forum/#!topic/golang-announce/3L45YRc91SY https://github.com/golang/crypto/commit/bac4c82f69751a6dd76e702d54b3ceb88ad… https://packetstormsecurity.com/files/156480/Go-SSH-0.0.2-Denial-Of-Service… https://security.archlinux.org/CVE-2020-9283

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