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-2019-2050... 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