October 2019 - Arch-security - lists.archlinux.org

[ASA-201910-7] chromium: multiple issues
by Santiago Torres-Arias 11 Oct '19

11 Oct '19

Arch Linux Security Advisory ASA-201910-7 ========================================= Severity: High Date : 2019-10-11 CVE-ID : CVE-2019-13693 CVE-2019-13694 CVE-2019-13695 CVE-2019-13696 CVE-2019-13697 Package : chromium Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-1043 Summary ======= The package chromium before version 77.0.3865.120-1 is vulnerable to multiple issues including arbitrary code execution and information disclosure. Resolution ========== Upgrade to 77.0.3865.120-1. # pacman -Syu "chromium>=77.0.3865.120-1" The problems have been fixed upstream in version 77.0.3865.120. Workaround ========== None. Description =========== - CVE-2019-13693 (arbitrary code execution) A use-after-free vulnerability has been found in the IndexedDB component of the chromium browser before 77.0.3865.120. - CVE-2019-13694 (arbitrary code execution) A use-after-free vulnerability has been found in the WebRTC component of the chromium browser before 77.0.3865.120. - CVE-2019-13695 (arbitrary code execution) A use-after-free vulnerability has been found in the audio component of the chromium browser before 77.0.3865.120. - CVE-2019-13696 (arbitrary code execution) A use-after-free vulnerability has been found in the V8 component of the chromium browser before 77.0.3865.120. - CVE-2019-13697 (information disclosure) A cross-origin size leak vulnerability has been found in the chromium browser before 77.0.3865.120. Impact ====== A remote attacker can access sensitive information or execute arbitrary code on the affected host. References ========== https://chromereleases.googleblog.com/2019/10/stable-channel-update-for-des… https://crbug.com/1005753 https://crbug.com/1005251 https://crbug.com/1004730 https://crbug.com/1000635 https://crbug.com/990849 https://security.archlinux.org/CVE-2019-13693 https://security.archlinux.org/CVE-2019-13694 https://security.archlinux.org/CVE-2019-13695 https://security.archlinux.org/CVE-2019-13696 https://security.archlinux.org/CVE-2019-13697

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[ASA-201910-6] unbound: denial of service
by Santiago Torres-Arias 11 Oct '19

11 Oct '19

Arch Linux Security Advisory ASA-201910-6 ========================================= Severity: High Date : 2019-10-11 CVE-ID : CVE-2019-16866 Package : unbound Type : denial of service Remote : Yes Link : https://security.archlinux.org/AVG-1042 Summary ======= The package unbound before version 1.9.4-1 is vulnerable to denial of service. Resolution ========== Upgrade to 1.9.4-1. # pacman -Syu "unbound>=1.9.4-1" The problem has been fixed upstream in version 1.9.4. Workaround ========== None. Description =========== Due to an error in parsing NOTIFY queries, it is possible for Unbound from 1.7.1 up to and including 1.9.3 to continue processing malformed queries and may ultimately result in a pointer dereference in uninitialized memory. This results in a crash of the Unbound daemon. Impact ====== A remote attacker might be able to crash the Unbound server via crafted NOTIFY queries. References ========== https://www.nlnetlabs.nl/downloads/unbound/CVE-2019-16866.txt https://github.com/NLnetLabs/unbound/commit/b60c4a472c856f0a98120b7259e991b… https://security.archlinux.org/CVE-2019-16866

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[ASA-201910-5] ruby2.5: multiple issues
by Levente Polyak 03 Oct '19

03 Oct '19

Arch Linux Security Advisory ASA-201910-5 ========================================= Severity: Medium Date : 2019-10-02 CVE-ID : CVE-2012-6708 CVE-2015-9251 CVE-2019-15845 CVE-2019-16201 CVE-2019-16254 CVE-2019-16255 Package : ruby2.5 Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-1040 Summary ======= The package ruby2.5 before version 2.5.7-1 is vulnerable to multiple issues including arbitrary code execution, content spoofing, cross-site scripting, denial of service and insufficient validation. Resolution ========== Upgrade to 2.5.7-1. # pacman -Syu "ruby2.5>=2.5.7-1" The problems have been fixed upstream in version 2.5.7. Workaround ========== None. Description =========== - CVE-2012-6708 (cross-site scripting) jQuery before 1.9.0 is vulnerable to Cross-site Scripting (XSS) attacks. The jQuery(strInput) function does not differentiate selectors from HTML in a reliable fashion. In vulnerable versions, jQuery determined whether the input was HTML by looking for the '<' character anywhere in the string, giving attackers more flexibility when attempting to construct a malicious payload. In fixed versions, jQuery only deems the input to be HTML if it explicitly starts with the '<' character, limiting exploitability only to attackers who can control the beginning of a string, which is far less common. - CVE-2015-9251 (cross-site scripting) jQuery before 3.0.0 is vulnerable to Cross-site Scripting (XSS) attacks when a cross-domain Ajax request is performed without the dataType option, causing text/javascript responses to be executed. - CVE-2019-15845 (insufficient validation) It has been discovered that Ruby before 2.4.8, 2.5.7 and 2.6.5 is vulnerable to NUL injection in built-in methods (File.fnmatch and File.fnmatch?). An attacker who has the control of the path pattern parameter could exploit this vulnerability to make path matching pass despite the intention of the program author. The Built-in methods File.fnmatch and its alias File.fnmatch? accept the path pattern as their first parameter. When the pattern contains NUL character (\0), the methods recognize that the path pattern ends immediately before the NUL byte. Therefore, a script that uses an external input as the pattern argument, an attacker can make it wrongly match a pathname that is the second parameter. - CVE-2019-16201 (denial of service) It has been discovered that Ruby before 2.4.8, 2.5.7 and 2.6.5 is vulnerable to denial of service via regular expressions in WEBrick's Digest access authentication module. An attacker can exploit this vulnerability to cause an effective denial of service against a WEBrick service. - CVE-2019-16254 (content spoofing) It has been discovered that Ruby before 2.4.8, 2.5.7 and 2.6.5 is vulnerable to HTTP response splitting in WEBrick bundled with Ruby. If a program using WEBrick inserts untrusted input into the response header, an attacker can exploit it to insert a newline character to split a header, and inject malicious content to deceive clients. This is the same issue as CVE-2017-17742. The previous fix was incomplete, which addressed the CRLF vector, but did not address an isolated CR or an isolated LF. - CVE-2019-16255 (arbitrary code execution) It has been discovered that Ruby before 2.4.8, 2.5.7 and 2.6.5 is vulnerable to code injection. Shell#[] and its alias Shell#test defined in lib/shell.rb allow code injection if the first argument (aka the “command” argument) is untrusted data. An attacker can exploit this to call an arbitrary Ruby method. Impact ====== A remote attacker is able to bypass path restrictions, perform a denial of service attack, inject malicious content or call an arbitrary Ruby method under certain circumstances. Furthermore, an attacker is able to perform cross-side scripting attacks by tricking users to generate documentation with a vulnerable RDoc version. RDoc is a static documentation generation tool, patching the tool itself is insufficient to mitigate these vulnerabilities. Documentations generated with previous versions have to be re-generated with newer RDoc. References ========== https://bugs.archlinux.org/task/63977 https://www.ruby-lang.org/en/news/2019/10/01/ruby-2-5-7-released/ https://bugs.jquery.com/ticket/11290 https://github.com/jquery/jquery/commit/05531fc4080ae24070930d15ae0cea7ae05… https://github.com/jquery/jquery/issues/2432 https://github.com/jquery/jquery/commit/f60729f3903d17917dc351f3ac87794de37… https://www.ruby-lang.org/en/news/2019/10/01/nul-injection-file-fnmatch-cve… https://www.ruby-lang.org/en/news/2019/10/01/webrick-regexp-digestauth-dos-… https://www.ruby-lang.org/en/news/2019/10/01/http-response-splitting-in-web… https://www.ruby-lang.org/en/news/2019/10/01/code-injection-shell-test-cve-… https://security.archlinux.org/CVE-2012-6708 https://security.archlinux.org/CVE-2015-9251 https://security.archlinux.org/CVE-2019-15845 https://security.archlinux.org/CVE-2019-16201 https://security.archlinux.org/CVE-2019-16254 https://security.archlinux.org/CVE-2019-16255

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[ASA-201910-4] ruby-rdoc: cross-site scripting
by Levente Polyak 03 Oct '19

03 Oct '19

Arch Linux Security Advisory ASA-201910-4 ========================================= Severity: Medium Date : 2019-10-02 CVE-ID : CVE-2012-6708 CVE-2015-9251 Package : ruby-rdoc Type : cross-site scripting Remote : Yes Link : https://security.archlinux.org/AVG-1041 Summary ======= The package ruby-rdoc before version 6.1.2-1 is vulnerable to cross- site scripting. Resolution ========== Upgrade to 6.1.2-1. # pacman -Syu "ruby-rdoc>=6.1.2-1" The problems have been fixed upstream in version 6.1.2. Workaround ========== None. Description =========== - CVE-2012-6708 (cross-site scripting) jQuery before 1.9.0 is vulnerable to Cross-site Scripting (XSS) attacks. The jQuery(strInput) function does not differentiate selectors from HTML in a reliable fashion. In vulnerable versions, jQuery determined whether the input was HTML by looking for the '<' character anywhere in the string, giving attackers more flexibility when attempting to construct a malicious payload. In fixed versions, jQuery only deems the input to be HTML if it explicitly starts with the '<' character, limiting exploitability only to attackers who can control the beginning of a string, which is far less common. - CVE-2015-9251 (cross-site scripting) jQuery before 3.0.0 is vulnerable to Cross-site Scripting (XSS) attacks when a cross-domain Ajax request is performed without the dataType option, causing text/javascript responses to be executed. Impact ====== An attacker is able to perform cross-side scripting attacks by tricking users to generate documentation with a vulnerable RDoc version. RDoc is a static documentation generation tool, patching the tool itself is insufficient to mitigate these vulnerabilities. Documentations generated with previous versions have to be re-generated with newer RDoc. References ========== https://bugs.archlinux.org/task/63978 https://www.ruby-lang.org/en/news/2019/08/28/multiple-jquery-vulnerabilitie… https://bugs.jquery.com/ticket/11290 https://github.com/jquery/jquery/commit/05531fc4080ae24070930d15ae0cea7ae05… https://github.com/jquery/jquery/issues/2432 https://github.com/jquery/jquery/commit/f60729f3903d17917dc351f3ac87794de37… https://security.archlinux.org/CVE-2012-6708 https://security.archlinux.org/CVE-2015-9251

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[ASA-201910-3] systemd: access restriction bypass
by Levente Polyak 03 Oct '19

03 Oct '19

Arch Linux Security Advisory ASA-201910-3 ========================================= Severity: Medium Date : 2019-10-02 CVE-ID : CVE-2019-15718 Package : systemd Type : access restriction bypass Remote : No Link : https://security.archlinux.org/AVG-1035 Summary ======= The package systemd before version 243.0-1 is vulnerable to access restriction bypass. Resolution ========== Upgrade to 243.0-1. # pacman -Syu "systemd>=243.0-1" The problem has been fixed upstream in version 243.0. Workaround ========== None. Description =========== An improper authorization flaw was discovered in systemd-resolved before v234 in the way it configures the exposed DBus interface org.freedesktop.resolve1. An unprivileged local attacker could call all DBus methods, even when marked as privileged operations. An attacker could abuse this flaw by changing the DNS, Search Domain, LLMNR, DNSSEC and other network link settings without any authorization, allowing control of the network names resolution process and cause the system to communicate with wrong or malicious servers. Those operations should be performed only by an high-privileged user. Impact ====== A local unprivileged attacker is able to change the DNS, Search Domain, LLMNR, DNSSEC and other network link settings without any authorization, allowing control of the network names resolution process and cause the system to communicate with wrong or malicious servers. References ========== https://www.openwall.com/lists/oss-security/2019/09/03/1 https://bugzilla.redhat.com/show_bug.cgi?id=1746057 https://github.com/systemd/systemd/commit/d93d10c3d101a73fe70d24154fd744a48… https://github.com/systemd/systemd/pull/13457 https://security.archlinux.org/CVE-2019-15718

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[ASA-201910-2] ruby: multiple issues
by Levente Polyak 03 Oct '19

03 Oct '19

Arch Linux Security Advisory ASA-201910-2 ========================================= Severity: Medium Date : 2019-10-02 CVE-ID : CVE-2019-15845 CVE-2019-16201 CVE-2019-16254 CVE-2019-16255 Package : ruby Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-1039 Summary ======= The package ruby before version 2.6.5-1 is vulnerable to multiple issues including arbitrary code execution, content spoofing, denial of service and insufficient validation. Resolution ========== Upgrade to 2.6.5-1. # pacman -Syu "ruby>=2.6.5-1" The problems have been fixed upstream in version 2.6.5. Workaround ========== None. Description =========== - CVE-2019-15845 (insufficient validation) It has been discovered that Ruby before 2.4.8, 2.5.7 and 2.6.5 is vulnerable to NUL injection in built-in methods (File.fnmatch and File.fnmatch?). An attacker who has the control of the path pattern parameter could exploit this vulnerability to make path matching pass despite the intention of the program author. The Built-in methods File.fnmatch and its alias File.fnmatch? accept the path pattern as their first parameter. When the pattern contains NUL character (\0), the methods recognize that the path pattern ends immediately before the NUL byte. Therefore, a script that uses an external input as the pattern argument, an attacker can make it wrongly match a pathname that is the second parameter. - CVE-2019-16201 (denial of service) It has been discovered that Ruby before 2.4.8, 2.5.7 and 2.6.5 is vulnerable to denial of service via regular expressions in WEBrick's Digest access authentication module. An attacker can exploit this vulnerability to cause an effective denial of service against a WEBrick service. - CVE-2019-16254 (content spoofing) It has been discovered that Ruby before 2.4.8, 2.5.7 and 2.6.5 is vulnerable to HTTP response splitting in WEBrick bundled with Ruby. If a program using WEBrick inserts untrusted input into the response header, an attacker can exploit it to insert a newline character to split a header, and inject malicious content to deceive clients. This is the same issue as CVE-2017-17742. The previous fix was incomplete, which addressed the CRLF vector, but did not address an isolated CR or an isolated LF. - CVE-2019-16255 (arbitrary code execution) It has been discovered that Ruby before 2.4.8, 2.5.7 and 2.6.5 is vulnerable to code injection. Shell#[] and its alias Shell#test defined in lib/shell.rb allow code injection if the first argument (aka the “command” argument) is untrusted data. An attacker can exploit this to call an arbitrary Ruby method. Impact ====== A remote attacker is able to bypass path restrictions, perform a denial of service attack, inject malicious content or call an arbitrary Ruby method under certain circumstances. References ========== https://bugs.archlinux.org/task/63977 https://www.ruby-lang.org/en/news/2019/10/01/ruby-2-6-5-released/ https://www.ruby-lang.org/en/news/2019/10/01/nul-injection-file-fnmatch-cve… https://www.ruby-lang.org/en/news/2019/10/01/webrick-regexp-digestauth-dos-… https://www.ruby-lang.org/en/news/2019/10/01/http-response-splitting-in-web… https://www.ruby-lang.org/en/news/2019/10/01/code-injection-shell-test-cve-… https://security.archlinux.org/CVE-2019-15845 https://security.archlinux.org/CVE-2019-16201 https://security.archlinux.org/CVE-2019-16254 https://security.archlinux.org/CVE-2019-16255

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[ASA-201910-1] exim: arbitrary code execution
by Levente Polyak 03 Oct '19

03 Oct '19

Arch Linux Security Advisory ASA-201910-1 ========================================= Severity: Critical Date : 2019-10-02 CVE-ID : CVE-2019-16928 Package : exim Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-1038 Summary ======= The package exim before version 4.92.3-1 is vulnerable to arbitrary code execution. Resolution ========== Upgrade to 4.92.3-1. # pacman -Syu "exim>=4.92.3-1" The problem has been fixed upstream in version 4.92.3. Workaround ========== None. Description =========== It has been discovered that Exim before 4.92.3 is vulnerable to a heap- based buffer overflow in string_vformat (string.c) involving a long EHLO command leading to remote code execution. Impact ====== A remote attacker is able to execute arbitrary code on the affected host by sending a specifically crafted long EHLO command. References ========== https://www.exim.org/static/doc/security/CVE-2019-16928.txt https://bugs.exim.org/show_bug.cgi?id=2449 https://git.exim.org/exim.git/commitdiff/478effbfd9c3cc5a627fc671d4bf94d136… https://www.openwall.com/lists/oss-security/2019/09/28/1 https://security.archlinux.org/CVE-2019-16928

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