Advisories ยป MGASA-2021-0407

Updated thunderbird packages fix security vulnerabilities

Publication date: 15 Aug 2021
Modification date: 15 Aug 2021
Type: security
Affected Mageia releases : 8
CVE: CVE-2021-29980 , CVE-2021-29984 , CVE-2021-29985 , CVE-2021-29986 , CVE-2021-29988 , CVE-2021-29989

Description

Updated thunderbird packages fix security vulnerabilities:

Uninitialized memory in a canvas object could have caused an incorrect
free() leading to memory corruption and a potentially exploitable crash
(CVE-2021-29980).

Instruction reordering during JIT optimization resulted in a sequence of
instructions that would cause an object to be incorrectly considered during
garbage collection. This led to memory corruption and a potentially
exploitable crash (CVE-2021-29984).

A use-after-free vulnerability in media channels could have led to memory
corruption and a potentially exploitable crash (CVE-2021-29985).

A suspected race condition when calling getaddrinfo while resolving DNS
names could have led to memory corruption and a potentially exploitable
crash (CVE-2021-29986).

Thunderbird incorrectly treated an inline list-item element as a block
element, resulting in an out of bounds read or memory corruption, and a
potentially exploitable crash (CVE-2021-29988).

Mozilla developers Christoph Kerschbaumer, Simon Giesecke, Sandor Molnar,
and Olli Pettay reported memory safety bugs present in Thunderbird ESR
78.12. 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 (CVE-2021-29989).

References

SRPMS

8/core