Arch Linux Security Advisory ASA-201507-9 ========================================= Severity: High Date : 2015-07-11 CVE-ID : CVE-2015-2724 CVE-2015-2725 CVE-2015-2726 CVE-2015-2731 CVE-2015-2734 CVE-2015-2735 CVE-2015-2736 CVE-2015-2737 CVE-2015-2738 CVE-2015-2739 CVE-2015-2740 CVE-2015-2741 Package : thunderbird Type : multiple issues Remote : Yes Link : https://wiki.archlinux.org/index.php/CVE Summary ======= The package thunderbird before version 38.1.0-1 is vulnerable to multiple issues, including remote code execution and key pinning bypass. Resolution ========== Upgrade to 38.1.0-1. # pacman -Syu "thunderbird>=38.1.0-1" The problem has been fixed upstream in version 38.1.0. Workaround ========== None. Description =========== - CVE-2015-2724, CVE-2015-2725, CVE-2015-2726 (Miscellaneous memory safety hazards): Mozilla developers and community identified and fixed several memory safety bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these bugs showed evidence of memory corruption under certain circumstances, and we presume that with enough effort at least some of these could be exploited to run arbitrary code. In general these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled, but are potentially a risk in browser or browser-like contexts. - CVE-2015-2731 (Use-after-free in Content Policy due to microtask execution error): Security researcher Herre reported a use-after-free vulnerability when a Content Policy modifies the Document Object Model to remove a DOM object, which is then used afterwards due to an error in microtask implementation. This leads to an exploitable crash. In general this flaw cannot be exploited through email in the Thunderbird product because scripting is disabled, but is potentially a risk in browser or browser-like contexts. - CVE-2015-2734, CVE-2015-2735, CVE-2015-2736, CVE-2015-2737, CVE-2015-2738, CVE-2015-2739, CVE-2015-2740 (Vulnerabilities found through code inspection): Security researcher Ronald Crane reported seven vulnerabilities affecting released code that he found through code inspection. These included three uses of uninitialized memory, one poor validation leading to an exploitable crash, one read of unowned memory in zip files, and two buffer overflows. These do not all have clear mechanisms to be exploited through web content but are vulnerable if a mechanism can be found to trigger them. - CVE-2015-2741 (Key pinning is ignored when overridable errors are encountered): Mozilla security engineer David Keeler reported that when an overridable error is encountered, such as those for expired certificates or a host name does not match a certificate, pinning checks can be be skipped. This would allow for a user to override a pinned certificate when they should not be able to do so. This issue does not allow for third parties to cause a certificate to be overridden and the user would still have to manually do so. In general this flaw cannot be exploited through email in the Thunderbird product because scripting is disabled, but is potentially a risk in browser or browser-like contexts. Impact ====== A remote adversary may be able to execute arbitrary code, or trick user into bypassing key pinning. References ========== https://www.mozilla.org/en-US/security/known-vulnerabilities/thunderbird/#th... https://www.mozilla.org/en-US/security/advisories/mfsa2015-59/ https://www.mozilla.org/en-US/security/advisories/mfsa2015-63/ https://www.mozilla.org/en-US/security/advisories/mfsa2015-66/ https://www.mozilla.org/en-US/security/advisories/mfsa2015-67/ https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2724 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2725 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2726 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2731 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2734 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2735 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2736 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2737 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2738 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2739 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2740 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2741