thunderbird (SL7)

Synopsis: Important: thunderbird security update
Advisory ID: SLSA-2021:3160-1
Issue Date: 2021-08-18
CVE Numbers: CVE-2021-29986

This update upgrades Thunderbird to version 78.13.0.

Security Fix(es):

* Mozilla: Uninitialized memory in a canvas object could have led to
memory corruption (CVE-2021-29980)

* Mozilla: Incorrect instruction reordering during JIT optimization

* Mozilla: Race condition when resolving DNS names could have led to
memory corruption (CVE-2021-29986)

* Mozilla: Memory corruption as a result of incorrect style treatment

* Mozilla: Memory safety bugs fixed in Thunderbird 78.13 (CVE-2021-29989)

* Mozilla: Use-after-free media channels (CVE-2021-29985)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE

– Scientific Linux Development Team