Issued:
2021-07-26
Updated:
2021-07-26

RHSA-2021:2881 - Security Advisory

Synopsis

Important: thunderbird security update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for thunderbird is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 78.12.0.

Security Fix(es):

  • Mozilla: IMAP server responses sent by a MITM prior to STARTTLS could be processed (CVE-2021-29969)
  • Mozilla: Use-after-free in accessibility features of a document (CVE-2021-29970)
  • Mozilla: Memory safety bugs fixed in Firefox 90 and Firefox ESR 78.12 (CVE-2021-29976)
  • chromium-browser: Out of bounds write in ANGLE (CVE-2021-30547)

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.

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.

Affected Products

  • Red Hat Enterprise Linux Server 7 x86_64
  • Red Hat Enterprise Linux Workstation 7 x86_64
  • Red Hat Enterprise Linux Desktop 7 x86_64
  • Red Hat Enterprise Linux for Power, little endian 7 ppc64le

Fixes

  • BZ - 1970109 - CVE-2021-30547 chromium-browser: Out of bounds write in ANGLE
  • BZ - 1982013 - CVE-2021-29970 Mozilla: Use-after-free in accessibility features of a document
  • BZ - 1982014 - CVE-2021-29976 Mozilla: Memory safety bugs fixed in Firefox 90 and Firefox ESR 78.12
  • BZ - 1982015 - CVE-2021-29969 Mozilla: IMAP server responses sent by a MITM prior to STARTTLS could be processed

Red Hat Enterprise Linux Server 7

SRPM
thunderbird-78.12.0-2.el7_9.src.rpm SHA-256: 69662afce5a411fb758130f44ebb42a76412583949a8e1db4c7c7d524aa7c32b
x86_64
thunderbird-78.12.0-2.el7_9.x86_64.rpm SHA-256: bff3916ccadb4d98416b8954bd6256e2d74393c7b2e38d3e807eecfbf29007df
thunderbird-debuginfo-78.12.0-2.el7_9.x86_64.rpm SHA-256: 85438eb269eba2a74349bbc77f8715a5afccfc26b656b30f1b85da9c20835fc8

Red Hat Enterprise Linux Workstation 7

SRPM
thunderbird-78.12.0-2.el7_9.src.rpm SHA-256: 69662afce5a411fb758130f44ebb42a76412583949a8e1db4c7c7d524aa7c32b
x86_64
thunderbird-78.12.0-2.el7_9.x86_64.rpm SHA-256: bff3916ccadb4d98416b8954bd6256e2d74393c7b2e38d3e807eecfbf29007df
thunderbird-debuginfo-78.12.0-2.el7_9.x86_64.rpm SHA-256: 85438eb269eba2a74349bbc77f8715a5afccfc26b656b30f1b85da9c20835fc8

Red Hat Enterprise Linux Desktop 7

SRPM
thunderbird-78.12.0-2.el7_9.src.rpm SHA-256: 69662afce5a411fb758130f44ebb42a76412583949a8e1db4c7c7d524aa7c32b
x86_64
thunderbird-78.12.0-2.el7_9.x86_64.rpm SHA-256: bff3916ccadb4d98416b8954bd6256e2d74393c7b2e38d3e807eecfbf29007df
thunderbird-debuginfo-78.12.0-2.el7_9.x86_64.rpm SHA-256: 85438eb269eba2a74349bbc77f8715a5afccfc26b656b30f1b85da9c20835fc8

Red Hat Enterprise Linux for Power, little endian 7

SRPM
thunderbird-78.12.0-2.el7_9.src.rpm SHA-256: 69662afce5a411fb758130f44ebb42a76412583949a8e1db4c7c7d524aa7c32b
ppc64le
thunderbird-78.12.0-2.el7_9.ppc64le.rpm SHA-256: e1a18e2a60d091abe102f5f303484c875538f251b6cf2771c97c4437ebf20d6b
thunderbird-debuginfo-78.12.0-2.el7_9.ppc64le.rpm SHA-256: 40bd3805ebcc125d8a3147375d3a62ba6f36302ff3d0707b16062103df3a78a5

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.