RedHat: RHSA-2021-3155:01 Important: thunderbird security update
Summary
Mozilla Thunderbird is a standalone mail and newsgroup client.
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
(CVE-2021-29984)
* 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
(CVE-2021-29988)
* 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
page(s) listed in the References section.
Summary
Solution
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
All running instances of Thunderbird must be restarted for the update to
take effect.
References
https://access.redhat.com/security/cve/CVE-2021-29980 https://access.redhat.com/security/cve/CVE-2021-29984 https://access.redhat.com/security/cve/CVE-2021-29985 https://access.redhat.com/security/cve/CVE-2021-29986 https://access.redhat.com/security/cve/CVE-2021-29988 https://access.redhat.com/security/cve/CVE-2021-29989 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux AppStream (v. 8):
Source:
thunderbird-78.13.0-1.el8_4.src.rpm
aarch64:
thunderbird-78.13.0-1.el8_4.aarch64.rpm
thunderbird-debuginfo-78.13.0-1.el8_4.aarch64.rpm
thunderbird-debugsource-78.13.0-1.el8_4.aarch64.rpm
ppc64le:
thunderbird-78.13.0-1.el8_4.ppc64le.rpm
thunderbird-debuginfo-78.13.0-1.el8_4.ppc64le.rpm
thunderbird-debugsource-78.13.0-1.el8_4.ppc64le.rpm
s390x:
thunderbird-78.13.0-1.el8_4.s390x.rpm
thunderbird-debuginfo-78.13.0-1.el8_4.s390x.rpm
thunderbird-debugsource-78.13.0-1.el8_4.s390x.rpm
x86_64:
thunderbird-78.13.0-1.el8_4.x86_64.rpm
thunderbird-debuginfo-78.13.0-1.el8_4.x86_64.rpm
thunderbird-debugsource-78.13.0-1.el8_4.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for thunderbird is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64
Bugs Fixed
1992417 - CVE-2021-29986 Mozilla: Race condition when resolving DNS names could have led to memory corruption
1992419 - CVE-2021-29988 Mozilla: Memory corruption as a result of incorrect style treatment
1992420 - CVE-2021-29984 Mozilla: Incorrect instruction reordering during JIT optimization
1992421 - CVE-2021-29980 Mozilla: Uninitialized memory in a canvas object could have led to memory corruption
1992422 - CVE-2021-29985 Mozilla: Use-after-free media channels
1992423 - CVE-2021-29989 Mozilla: Memory safety bugs fixed in Thunderbird 78.13
