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Red Hat Product Errata RHSA-2021:0661 - Security Advisory
Issued:
2021-02-24
Updated:
2021-02-24

RHSA-2021:0661 - Security Advisory

  • Overview
  • Updated Packages

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 78.8.0.

Security Fix(es):

  • Mozilla: Content Security Policy violation report could have contained the destination of a redirect (CVE-2021-23968)
  • Mozilla: Content Security Policy violation report could have contained the destination of a redirect (CVE-2021-23969)
  • Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8 (CVE-2021-23978)
  • Mozilla: MediaError message property could have leaked information about cross-origin resources (CVE-2021-23973)

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 Server - Extended Life Cycle Support 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
  • Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le

Fixes

  • BZ - 1932109 - CVE-2021-23969 Mozilla: Content Security Policy violation report could have contained the destination of a redirect
  • BZ - 1932110 - CVE-2021-23968 Mozilla: Content Security Policy violation report could have contained the destination of a redirect
  • BZ - 1932111 - CVE-2021-23973 Mozilla: MediaError message property could have leaked information about cross-origin resources
  • BZ - 1932112 - CVE-2021-23978 Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8

CVEs

  • CVE-2021-23968
  • CVE-2021-23969
  • CVE-2021-23973
  • CVE-2021-23978

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux Server 7

SRPM
thunderbird-78.8.0-1.el7_9.src.rpm SHA-256: b53975467610dde1bd1509668b61fe2a80232e08e8b02bb1667d2e95b6d3915e
x86_64
thunderbird-78.8.0-1.el7_9.x86_64.rpm SHA-256: c38a2dff8f3d2389ef54cca99904ac3fc6809de49cc015c393ca144c16db41db
thunderbird-debuginfo-78.8.0-1.el7_9.x86_64.rpm SHA-256: fe56a793815a6f9ba48f41c31b3c8b1c3e2b0e89d0c0af720d54e23b3614dfc5

Red Hat Enterprise Linux Server - Extended Life Cycle Support 7

SRPM
thunderbird-78.8.0-1.el7_9.src.rpm SHA-256: b53975467610dde1bd1509668b61fe2a80232e08e8b02bb1667d2e95b6d3915e
x86_64
thunderbird-78.8.0-1.el7_9.x86_64.rpm SHA-256: c38a2dff8f3d2389ef54cca99904ac3fc6809de49cc015c393ca144c16db41db
thunderbird-debuginfo-78.8.0-1.el7_9.x86_64.rpm SHA-256: fe56a793815a6f9ba48f41c31b3c8b1c3e2b0e89d0c0af720d54e23b3614dfc5

Red Hat Enterprise Linux Workstation 7

SRPM
thunderbird-78.8.0-1.el7_9.src.rpm SHA-256: b53975467610dde1bd1509668b61fe2a80232e08e8b02bb1667d2e95b6d3915e
x86_64
thunderbird-78.8.0-1.el7_9.x86_64.rpm SHA-256: c38a2dff8f3d2389ef54cca99904ac3fc6809de49cc015c393ca144c16db41db
thunderbird-debuginfo-78.8.0-1.el7_9.x86_64.rpm SHA-256: fe56a793815a6f9ba48f41c31b3c8b1c3e2b0e89d0c0af720d54e23b3614dfc5

Red Hat Enterprise Linux Desktop 7

SRPM
thunderbird-78.8.0-1.el7_9.src.rpm SHA-256: b53975467610dde1bd1509668b61fe2a80232e08e8b02bb1667d2e95b6d3915e
x86_64
thunderbird-78.8.0-1.el7_9.x86_64.rpm SHA-256: c38a2dff8f3d2389ef54cca99904ac3fc6809de49cc015c393ca144c16db41db
thunderbird-debuginfo-78.8.0-1.el7_9.x86_64.rpm SHA-256: fe56a793815a6f9ba48f41c31b3c8b1c3e2b0e89d0c0af720d54e23b3614dfc5

Red Hat Enterprise Linux for Power, little endian 7

SRPM
thunderbird-78.8.0-1.el7_9.src.rpm SHA-256: b53975467610dde1bd1509668b61fe2a80232e08e8b02bb1667d2e95b6d3915e
ppc64le
thunderbird-78.8.0-1.el7_9.ppc64le.rpm SHA-256: 9f6572e56caedaf0c7680ed885e57eff2b7e345d59c6629a019213f1ae90a509
thunderbird-debuginfo-78.8.0-1.el7_9.ppc64le.rpm SHA-256: 5f16a6a5b9644bcfc0627dc275c9f5fbda159db1c354ea251e276038db9dcfae

Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7

SRPM
thunderbird-78.8.0-1.el7_9.src.rpm SHA-256: b53975467610dde1bd1509668b61fe2a80232e08e8b02bb1667d2e95b6d3915e
ppc64le
thunderbird-78.8.0-1.el7_9.ppc64le.rpm SHA-256: 9f6572e56caedaf0c7680ed885e57eff2b7e345d59c6629a019213f1ae90a509
thunderbird-debuginfo-78.8.0-1.el7_9.ppc64le.rpm SHA-256: 5f16a6a5b9644bcfc0627dc275c9f5fbda159db1c354ea251e276038db9dcfae

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

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