Arch Linux Security Advisory ASA-202005-7 ========================================= Severity: Critical Date : 2020-05-09 CVE-ID : CVE-2020-6831 CVE-2020-12387 CVE-2020-12392 CVE-2020-12395 CVE-2020-12397 Package : thunderbird Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-1155 Summary ======= The package thunderbird before version 68.8.0-1 is vulnerable to multiple issues including arbitrary code execution and content spoofing. Resolution ========== Upgrade to 68.8.0-1. # pacman -Syu "thunderbird>=68.8.0-1" The problems have been fixed upstream in version 68.8.0. Workaround ========== None. Description =========== - CVE-2020-6831 (arbitrary code execution) A buffer overflow could occur when parsing and validating SCTP chunks in WebRTC, in Firefox before 76.0, Thunderbird before 68.8.0 and chromium before 81.0.4044.138. This could have led to memory corruption and a potentially exploitable crash. - CVE-2020-12387 (arbitrary code execution) A race condition has been found in Firefox before 76.0 and Thunderbird before 68.8.0, when running shutdown code for Web Worker, leading to a use-after-free vulnerability. This results in a potentially exploitable crash. - CVE-2020-12392 (content spoofing) The 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP POST data of a request in Firefox before 76.0 and Thunderbird before 68.8.0, 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 the disclosure of local files. - CVE-2020-12395 (arbitrary code execution) Several memory safety bugs has been found in Firefox before 76.0, Firefox ESR before 68.8 and Thunderbird before 68.8.0. Some of these bugs showed evidence of memory corruption and Mozilla presumes that with enough effort some of these could have been exploited to run arbitrary code. - CVE-2020-12397 (content spoofing) An spoofing email address issue has been found in Thunderbird before 68.8.0. By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays. Impact ====== A remote attacker can spoof an e-mail address and execute arbitrary code on the affected host. References ========== https://www.mozilla.org/en-US/security/advisories/mfsa2020-18/ https://bugzilla.mozilla.org/show_bug.cgi?id=1632241 https://crbug.com/1073602 https://www.mozilla.org/en-US/security/advisories/mfsa2020-16/#CVE-2020-6831 https://www.mozilla.org/en-US/security/advisories/mfsa2020-18/#CVE-2020-6831 https://www.mozilla.org/en-US/security/advisories/mfsa2020-16/#CVE-2020-1238... https://www.mozilla.org/en-US/security/advisories/mfsa2020-18/#CVE-2020-1238... https://bugzilla.mozilla.org/show_bug.cgi?id=1545345 https://www.mozilla.org/en-US/security/advisories/mfsa2020-16/#CVE-2020-1239... https://www.mozilla.org/en-US/security/advisories/mfsa2020-18/#CVE-2020-1239... https://bugzilla.mozilla.org/show_bug.cgi?id=1614468 https://www.mozilla.org/en-US/security/advisories/mfsa2020-16/#CVE-2020-1239... https://www.mozilla.org/en-US/security/advisories/mfsa2020-18/#CVE-2020-1239... https://bugzilla.mozilla.org/buglist.cgi?bug_id=1595886%2C1611482%2C1614704%... https://www.mozilla.org/en-US/security/advisories/mfsa2020-18/#CVE-2020-1239... https://bugzilla.mozilla.org/show_bug.cgi?id=1617370 https://security.archlinux.org/CVE-2020-6831 https://security.archlinux.org/CVE-2020-12387 https://security.archlinux.org/CVE-2020-12392 https://security.archlinux.org/CVE-2020-12395 https://security.archlinux.org/CVE-2020-12397