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Red Hat Product Errata RHSA-2020:5233 - Security Advisory
Issued:
2020-11-30
Updated:
2020-11-30

RHSA-2020:5233 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: firefox 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 firefox 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 Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 78.5.0 ESR.

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

After installing the update, Firefox must be restarted for the changes to take effect.

Affected Products

  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.1 x86_64
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.1 s390x
  • Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.1 ppc64le
  • Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.1 aarch64
  • 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 - 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 for x86_64 - Extended Update Support 8.1

SRPM
firefox-78.5.0-1.el8_1.src.rpm SHA-256: dc764577900f838f30b851974c81b418e3e939c77d10685ea8621abfcbf27d94
x86_64
firefox-78.5.0-1.el8_1.x86_64.rpm SHA-256: fd76d51f98baf48c42798a170dd9216068fcb0c27a3f29cab3b7f2ce5253f927
firefox-debuginfo-78.5.0-1.el8_1.x86_64.rpm SHA-256: b42e693d214ecc6ab414209d8fe07782b6980169f44a3e5e4da126067c941d72
firefox-debugsource-78.5.0-1.el8_1.x86_64.rpm SHA-256: 39af609adebb5f70e8d447aca0fe6e6e6e70ce58ecabd2a3865a08254cc2134e

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.1

SRPM
firefox-78.5.0-1.el8_1.src.rpm SHA-256: dc764577900f838f30b851974c81b418e3e939c77d10685ea8621abfcbf27d94
s390x
firefox-78.5.0-1.el8_1.s390x.rpm SHA-256: e9e95c8b7828ee02b9d89600e989f3d05713ff6be133e705e45d60db5c57f60a
firefox-debuginfo-78.5.0-1.el8_1.s390x.rpm SHA-256: 3698e31032496902579d0c05853253e74dbe03800afde480a8bb7fa1a86995ed
firefox-debugsource-78.5.0-1.el8_1.s390x.rpm SHA-256: 36f37b1ce1bcb0623241624708f71cdbc31a02d5d91111258afc25d435f71326

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

SRPM
firefox-78.5.0-1.el8_1.src.rpm SHA-256: dc764577900f838f30b851974c81b418e3e939c77d10685ea8621abfcbf27d94
ppc64le
firefox-78.5.0-1.el8_1.ppc64le.rpm SHA-256: 881aed06c137b79617824650758c129587025b4093fadee2b133506e6afe3cfb
firefox-debuginfo-78.5.0-1.el8_1.ppc64le.rpm SHA-256: c01e31ebe9718de2e46a29c7a7bffc1f04526aa8a14b7c8ece8f207e8638f487
firefox-debugsource-78.5.0-1.el8_1.ppc64le.rpm SHA-256: 879c9e90d45d79944865e5f8551e9348982b0239e092de702861e864d92596c0

Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.1

SRPM
firefox-78.5.0-1.el8_1.src.rpm SHA-256: dc764577900f838f30b851974c81b418e3e939c77d10685ea8621abfcbf27d94
aarch64
firefox-78.5.0-1.el8_1.aarch64.rpm SHA-256: e31abdcedc8f6ece6fb5da02f5e631f93ee38115ffff935e5af9b07c05888631
firefox-debuginfo-78.5.0-1.el8_1.aarch64.rpm SHA-256: c610451ecc7ce902fef8797c0378186130fa2a7b87b4f3dcfe15d26f305792c1
firefox-debugsource-78.5.0-1.el8_1.aarch64.rpm SHA-256: 46a72195032d6d68f9b8de73f53e10bebf8ea90d6b2e4112e041ca6a28e77380

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

SRPM
firefox-78.5.0-1.el8_1.src.rpm SHA-256: dc764577900f838f30b851974c81b418e3e939c77d10685ea8621abfcbf27d94
ppc64le
firefox-78.5.0-1.el8_1.ppc64le.rpm SHA-256: 881aed06c137b79617824650758c129587025b4093fadee2b133506e6afe3cfb
firefox-debuginfo-78.5.0-1.el8_1.ppc64le.rpm SHA-256: c01e31ebe9718de2e46a29c7a7bffc1f04526aa8a14b7c8ece8f207e8638f487
firefox-debugsource-78.5.0-1.el8_1.ppc64le.rpm SHA-256: 879c9e90d45d79944865e5f8551e9348982b0239e092de702861e864d92596c0

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

SRPM
firefox-78.5.0-1.el8_1.src.rpm SHA-256: dc764577900f838f30b851974c81b418e3e939c77d10685ea8621abfcbf27d94
x86_64
firefox-78.5.0-1.el8_1.x86_64.rpm SHA-256: fd76d51f98baf48c42798a170dd9216068fcb0c27a3f29cab3b7f2ce5253f927
firefox-debuginfo-78.5.0-1.el8_1.x86_64.rpm SHA-256: b42e693d214ecc6ab414209d8fe07782b6980169f44a3e5e4da126067c941d72
firefox-debugsource-78.5.0-1.el8_1.x86_64.rpm SHA-256: 39af609adebb5f70e8d447aca0fe6e6e6e70ce58ecabd2a3865a08254cc2134e

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

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