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Red Hat Product Errata RHSA-2020:5235 - Security Advisory
Issued:
2020-11-30
Updated:
2020-11-30

RHSA-2020:5235 - 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 78.5.0.

Security Fix(es):

  • Mozilla: Parsing mismatches could confuse and bypass security sanitizer for chrome privileged code (CVE-2020-26951)
  • Mozilla: Memory safety bugs fixed in Firefox 83 and Firefox ESR 78.5 (CVE-2020-26968)
  • Mozilla: Variable time processing of cross-origin images during drawImage calls (CVE-2020-16012)
  • Mozilla: Fullscreen could be enabled without displaying the security UI (CVE-2020-26953)
  • Mozilla: XSS through paste (manual and clipboard API) (CVE-2020-26956)
  • Mozilla: Requests intercepted through ServiceWorkers lacked MIME type restrictions (CVE-2020-26958)
  • Mozilla: Use-after-free in WebRequestService (CVE-2020-26959)
  • Mozilla: Potential use-after-free in uses of nsTArray (CVE-2020-26960)
  • Mozilla: DoH did not filter IPv4 mapped IP Addresses (CVE-2020-26961)
  • Mozilla: Software keyboards may have remembered typed passwords (CVE-2020-26965)

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 - 1898731 - CVE-2020-26951 Mozilla: Parsing mismatches could confuse and bypass security sanitizer for chrome privileged code
  • BZ - 1898732 - CVE-2020-16012 Mozilla: Variable time processing of cross-origin images during drawImage calls
  • BZ - 1898733 - CVE-2020-26953 Mozilla: Fullscreen could be enabled without displaying the security UI
  • BZ - 1898734 - CVE-2020-26956 Mozilla: XSS through paste (manual and clipboard API)
  • BZ - 1898735 - CVE-2020-26958 Mozilla: Requests intercepted through ServiceWorkers lacked MIME type restrictions
  • BZ - 1898736 - CVE-2020-26959 Mozilla: Use-after-free in WebRequestService
  • BZ - 1898737 - CVE-2020-26960 Mozilla: Potential use-after-free in uses of nsTArray
  • BZ - 1898738 - CVE-2020-26961 Mozilla: DoH did not filter IPv4 mapped IP Addresses
  • BZ - 1898739 - CVE-2020-26965 Mozilla: Software keyboards may have remembered typed passwords
  • BZ - 1898741 - CVE-2020-26968 Mozilla: Memory safety bugs fixed in Firefox 83 and Firefox ESR 78.5

CVEs

  • CVE-2020-16012
  • CVE-2020-26951
  • CVE-2020-26953
  • CVE-2020-26956
  • CVE-2020-26958
  • CVE-2020-26959
  • CVE-2020-26960
  • CVE-2020-26961
  • CVE-2020-26965
  • CVE-2020-26968

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-78.5.0-1.el7_9.src.rpm SHA-256: b45d0ffebddb50d1baaaee9720a96aac9d8404abe0a7fe960416cad47d35b4c9
x86_64
thunderbird-78.5.0-1.el7_9.x86_64.rpm SHA-256: 7d0c57a84e51f38fe88c55ac31e81ccb182b9db72b76115990080cd04b98fab2
thunderbird-debuginfo-78.5.0-1.el7_9.x86_64.rpm SHA-256: 926514069de1782af1c24fead586d855527354c556580c84718d49b3bad0e886

Red Hat Enterprise Linux Server - Extended Life Cycle Support 7

SRPM
thunderbird-78.5.0-1.el7_9.src.rpm SHA-256: b45d0ffebddb50d1baaaee9720a96aac9d8404abe0a7fe960416cad47d35b4c9
x86_64
thunderbird-78.5.0-1.el7_9.x86_64.rpm SHA-256: 7d0c57a84e51f38fe88c55ac31e81ccb182b9db72b76115990080cd04b98fab2
thunderbird-debuginfo-78.5.0-1.el7_9.x86_64.rpm SHA-256: 926514069de1782af1c24fead586d855527354c556580c84718d49b3bad0e886

Red Hat Enterprise Linux Workstation 7

SRPM
thunderbird-78.5.0-1.el7_9.src.rpm SHA-256: b45d0ffebddb50d1baaaee9720a96aac9d8404abe0a7fe960416cad47d35b4c9
x86_64
thunderbird-78.5.0-1.el7_9.x86_64.rpm SHA-256: 7d0c57a84e51f38fe88c55ac31e81ccb182b9db72b76115990080cd04b98fab2
thunderbird-debuginfo-78.5.0-1.el7_9.x86_64.rpm SHA-256: 926514069de1782af1c24fead586d855527354c556580c84718d49b3bad0e886

Red Hat Enterprise Linux Desktop 7

SRPM
thunderbird-78.5.0-1.el7_9.src.rpm SHA-256: b45d0ffebddb50d1baaaee9720a96aac9d8404abe0a7fe960416cad47d35b4c9
x86_64
thunderbird-78.5.0-1.el7_9.x86_64.rpm SHA-256: 7d0c57a84e51f38fe88c55ac31e81ccb182b9db72b76115990080cd04b98fab2
thunderbird-debuginfo-78.5.0-1.el7_9.x86_64.rpm SHA-256: 926514069de1782af1c24fead586d855527354c556580c84718d49b3bad0e886

Red Hat Enterprise Linux for Power, little endian 7

SRPM
thunderbird-78.5.0-1.el7_9.src.rpm SHA-256: b45d0ffebddb50d1baaaee9720a96aac9d8404abe0a7fe960416cad47d35b4c9
ppc64le
thunderbird-78.5.0-1.el7_9.ppc64le.rpm SHA-256: 1046b2bfb7b62836e34fb3299d1be2f3a19394ec01e9c449255c278dd001b906
thunderbird-debuginfo-78.5.0-1.el7_9.ppc64le.rpm SHA-256: 9fc04fb15f8eee6ccbbec26c6d59fe0305a575d502172960f1e2c462d17b2b0e

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

SRPM
thunderbird-78.5.0-1.el7_9.src.rpm SHA-256: b45d0ffebddb50d1baaaee9720a96aac9d8404abe0a7fe960416cad47d35b4c9
ppc64le
thunderbird-78.5.0-1.el7_9.ppc64le.rpm SHA-256: 1046b2bfb7b62836e34fb3299d1be2f3a19394ec01e9c449255c278dd001b906
thunderbird-debuginfo-78.5.0-1.el7_9.ppc64le.rpm SHA-256: 9fc04fb15f8eee6ccbbec26c6d59fe0305a575d502172960f1e2c462d17b2b0e

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

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