Important: thunderbird

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

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

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  

Additional References

Red Hat: CVE-2021-38493, CVE-2021-38495

Mitre: CVE-2021-38493, CVE-2021-38495