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RHEL 8: Thunderbird Important Security Update RHSA-2021:2264-01 CVE-2021-29956 CVE-2021-29957

red hat
Calendar Grey June 7, 2021
Scroller Redhat
A critical security patch for Thunderbird on RHEL 8 tackles significant memory safety vulnerabilities and OpenPGP-related concerns.
An update for thunderbird is now available for Red Hat Enterprise Linux 8

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.

Summary

Mozilla Thunderbird is a standalone mail and newsgroup client.
This update upgrades Thunderbird to version 78.11.0.
Security Fix(es):
* Mozilla: Memory safety bugs fixed in Firefox 89 and Firefox ESR 78.11 (CVE-2021-29967)
* Mozilla: Thunderbird stored OpenPGP secret keys without master password protection (CVE-2021-29956)
* Mozilla: Partial protection of inline OpenPGP message not indicated (CVE-2021-29957)
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.

Topics%20covered

Topics Covered

security advisory security issue update important red hat enterprise linux thunderbird memory safety

References

https://access.redhat.com/security/cve/CVE-2021-29956 https://access.redhat.com/security/cve/CVE-2021-29957 https://access.redhat.com/security/cve/CVE-2021-29967 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: thunderbird-78.11.0-1.el8_4.src.rpm
aarch64: thunderbird-78.11.0-1.el8_4.aarch64.rpm thunderbird-debuginfo-78.11.0-1.el8_4.aarch64.rpm thunderbird-debugsource-78.11.0-1.el8_4.aarch64.rpm
ppc64le: thunderbird-78.11.0-1.el8_4.ppc64le.rpm thunderbird-debuginfo-78.11.0-1.el8_4.ppc64le.rpm thunderbird-debugsource-78.11.0-1.el8_4.ppc64le.rpm
s390x: thunderbird-78.11.0-1.el8_4.s390x.rpm thunderbird-debuginfo-78.11.0-1.el8_4.s390x.rpm thunderbird-debugsource-78.11.0-1.el8_4.s390x.rpm
x86_64: thunderbird-78.11.0-1.el8_4.x86_64.rpm thunderbird-debuginfo-78.11.0-1.el8_4.x86_64.rpm thunderbird-debugsource-78.11.0-1.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/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:2264-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2264
Issue date: 2021-06-07

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.

Topics%20covered

Topics Covered

security advisory security issue update important red hat enterprise linux thunderbird memory safety

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

1961503 - CVE-2021-29957 Mozilla: Partial protection of inline OpenPGP message not indicated

1961504 - CVE-2021-29956 Mozilla: Thunderbird stored OpenPGP secret keys without master password protection

1966831 - CVE-2021-29967 Mozilla: Memory safety bugs fixed in Firefox 89 and Firefox ESR 78.11

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