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Red Hat Product Errata RHSA-2020:5644 - Security Advisory
Issued:
2020-12-21
Updated:
2020-12-21

RHSA-2020:5644 - 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 8.1 Extended Update Support.

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 78.6.0.

Security Fix(es):

  • chromium-browser: Uninitialized Use in V8 (CVE-2020-16042)
  • Mozilla: Stack overflow due to incorrect parsing of SMTP server response codes (CVE-2020-26970)
  • Mozilla: Heap buffer overflow in WebGL (CVE-2020-26971)
  • Mozilla: CSS Sanitizer performed incorrect sanitization (CVE-2020-26973)
  • Mozilla: Incorrect cast of StyleGenericFlexBasis resulted in a heap use-after-free (CVE-2020-26974)
  • Mozilla: Memory safety bugs fixed in Firefox 84 and Firefox ESR 78.6 (CVE-2020-35113)
  • Mozilla: Internal network hosts could have been probed by a malicious webpage (CVE-2020-26978)
  • Mozilla: The proxy.onRequest API did not catch view-source URLs (CVE-2020-35111)

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 for x86_64 - Extended Update Support 8.1 x86_64
  • Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.1 ppc64le
  • Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.1 ppc64le
  • Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.1 x86_64

Fixes

  • BZ - 1903443 - CVE-2020-26970 Mozilla: Stack overflow due to incorrect parsing of SMTP server response codes
  • BZ - 1904515 - CVE-2020-16042 chromium-browser: Uninitialized Use in V8
  • BZ - 1908022 - CVE-2020-26971 Mozilla: Heap buffer overflow in WebGL
  • BZ - 1908023 - CVE-2020-26973 Mozilla: CSS Sanitizer performed incorrect sanitization
  • BZ - 1908024 - CVE-2020-26974 Mozilla: Incorrect cast of StyleGenericFlexBasis resulted in a heap use-after-free
  • BZ - 1908025 - CVE-2020-26978 Mozilla: Internal network hosts could have been probed by a malicious webpage
  • BZ - 1908027 - CVE-2020-35111 Mozilla: The proxy.onRequest API did not catch view-source URLs
  • BZ - 1908029 - CVE-2020-35113 Mozilla: Memory safety bugs fixed in Firefox 84 and Firefox ESR 78.6

CVEs

  • CVE-2020-16042
  • CVE-2020-26970
  • CVE-2020-26971
  • CVE-2020-26973
  • CVE-2020-26974
  • CVE-2020-26978
  • CVE-2020-35111
  • CVE-2020-35113

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 for x86_64 - Extended Update Support 8.1

SRPM
thunderbird-78.6.0-1.el8_1.src.rpm SHA-256: f8cf6786f41025ad7e30cdff9f1fa0457a35e404929cd56a1ae52465abddd0fe
x86_64
thunderbird-78.6.0-1.el8_1.x86_64.rpm SHA-256: 1ead5c1f29a1ed18e2259d83a4226805ae50fd9a4efd3e12582325e28dc301c2
thunderbird-debuginfo-78.6.0-1.el8_1.x86_64.rpm SHA-256: b111b89b0552a9cfd32152cb27e33decbf44c69c9863a27f0d98ee0ef1b66255
thunderbird-debugsource-78.6.0-1.el8_1.x86_64.rpm SHA-256: 68e2f0c39228d47374bc6392bf078d1c11e93ce20fec7a42bc0277bc47317a98

Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.1

SRPM
thunderbird-78.6.0-1.el8_1.src.rpm SHA-256: f8cf6786f41025ad7e30cdff9f1fa0457a35e404929cd56a1ae52465abddd0fe
ppc64le
thunderbird-78.6.0-1.el8_1.ppc64le.rpm SHA-256: 17c8582875cc555503ff4a59312f62e41b7d7b8d44ccab6af54653cf419d110e
thunderbird-debuginfo-78.6.0-1.el8_1.ppc64le.rpm SHA-256: c52b11ffec8d8c2baf2333f2724a84bdca6e03d516e98a2b25a6da40e9b8f910
thunderbird-debugsource-78.6.0-1.el8_1.ppc64le.rpm SHA-256: a1fc0840021c0abd21977898cab771638059f5ce11c506359e60cdd2eca4db8a

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.1

SRPM
thunderbird-78.6.0-1.el8_1.src.rpm SHA-256: f8cf6786f41025ad7e30cdff9f1fa0457a35e404929cd56a1ae52465abddd0fe
ppc64le
thunderbird-78.6.0-1.el8_1.ppc64le.rpm SHA-256: 17c8582875cc555503ff4a59312f62e41b7d7b8d44ccab6af54653cf419d110e
thunderbird-debuginfo-78.6.0-1.el8_1.ppc64le.rpm SHA-256: c52b11ffec8d8c2baf2333f2724a84bdca6e03d516e98a2b25a6da40e9b8f910
thunderbird-debugsource-78.6.0-1.el8_1.ppc64le.rpm SHA-256: a1fc0840021c0abd21977898cab771638059f5ce11c506359e60cdd2eca4db8a

Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.1

SRPM
thunderbird-78.6.0-1.el8_1.src.rpm SHA-256: f8cf6786f41025ad7e30cdff9f1fa0457a35e404929cd56a1ae52465abddd0fe
x86_64
thunderbird-78.6.0-1.el8_1.x86_64.rpm SHA-256: 1ead5c1f29a1ed18e2259d83a4226805ae50fd9a4efd3e12582325e28dc301c2
thunderbird-debuginfo-78.6.0-1.el8_1.x86_64.rpm SHA-256: b111b89b0552a9cfd32152cb27e33decbf44c69c9863a27f0d98ee0ef1b66255
thunderbird-debugsource-78.6.0-1.el8_1.x86_64.rpm SHA-256: 68e2f0c39228d47374bc6392bf078d1c11e93ce20fec7a42bc0277bc47317a98

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

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