ALAS2-2021-1720

Related Vulnerabilities: CVE-2021-38493   CVE-2021-38495  

Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.14, Thunderbird < 78.14, and Firefox < 92. (CVE-2021-38493) Mozilla developers reported memory safety bugs present in Thunderbird 78.13.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 91.1 and Firefox ESR < 91.1. (CVE-2021-38495)

ALAS2-2021-1720


Amazon Linux 2 Security Advisory: ALAS-2021-1720
Advisory Release Date: 2021-10-28 23:22 Pacific
Advisory Updated Date: 2021-11-04 18:04 Pacific
Severity: Important

Issue Overview:

Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.14, Thunderbird < 78.14, and Firefox < 92. (CVE-2021-38493)

Mozilla developers reported memory safety bugs present in Thunderbird 78.13.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 91.1 and Firefox ESR < 91.1. (CVE-2021-38495)


Affected Packages:

thunderbird


Issue Correction:
Run yum update thunderbird to update your system.

New Packages:
aarch64:
    thunderbird-78.14.0-1.amzn2.0.1.aarch64
    thunderbird-debuginfo-78.14.0-1.amzn2.0.1.aarch64

src:
    thunderbird-78.14.0-1.amzn2.0.1.src

x86_64:
    thunderbird-78.14.0-1.amzn2.0.1.x86_64
    thunderbird-debuginfo-78.14.0-1.amzn2.0.1.x86_64