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Red Hat Product Errata RHSA-2020:5239 - Security Advisory
Issued:
2020-11-30
Updated:
2020-11-30

RHSA-2020:5239 - 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 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 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 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 IBM z Systems 7 s390x
  • Red Hat Enterprise Linux for Power, big endian 7 ppc64
  • Red Hat Enterprise Linux for Power, little endian 7 ppc64le
  • Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x
  • Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64
  • 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
firefox-78.5.0-1.el7_9.src.rpm SHA-256: f5ab52e5360473c032c0b1ab76e8851379940b56dd14c0f967f6cc7db62a72bb
x86_64
firefox-78.5.0-1.el7_9.i686.rpm SHA-256: c8e542cd7345837d6d9d12f5822f1119fa9fcd2e69abedf04e0f069986134412
firefox-78.5.0-1.el7_9.x86_64.rpm SHA-256: 4ef1f1c5c1f4cae5d4b4a6a00df02fb21e3792dd9ebe866090dffe12ef5f7752
firefox-debuginfo-78.5.0-1.el7_9.x86_64.rpm SHA-256: 330ec760f11b1da9ad70dc23757ffccfdb799fd3f426e7a08e3edce0893fcae8

Red Hat Enterprise Linux Server - Extended Life Cycle Support 7

SRPM
firefox-78.5.0-1.el7_9.src.rpm SHA-256: f5ab52e5360473c032c0b1ab76e8851379940b56dd14c0f967f6cc7db62a72bb
x86_64
firefox-78.5.0-1.el7_9.i686.rpm SHA-256: c8e542cd7345837d6d9d12f5822f1119fa9fcd2e69abedf04e0f069986134412
firefox-78.5.0-1.el7_9.x86_64.rpm SHA-256: 4ef1f1c5c1f4cae5d4b4a6a00df02fb21e3792dd9ebe866090dffe12ef5f7752
firefox-debuginfo-78.5.0-1.el7_9.x86_64.rpm SHA-256: 330ec760f11b1da9ad70dc23757ffccfdb799fd3f426e7a08e3edce0893fcae8

Red Hat Enterprise Linux Workstation 7

SRPM
firefox-78.5.0-1.el7_9.src.rpm SHA-256: f5ab52e5360473c032c0b1ab76e8851379940b56dd14c0f967f6cc7db62a72bb
x86_64
firefox-78.5.0-1.el7_9.i686.rpm SHA-256: c8e542cd7345837d6d9d12f5822f1119fa9fcd2e69abedf04e0f069986134412
firefox-78.5.0-1.el7_9.x86_64.rpm SHA-256: 4ef1f1c5c1f4cae5d4b4a6a00df02fb21e3792dd9ebe866090dffe12ef5f7752
firefox-debuginfo-78.5.0-1.el7_9.x86_64.rpm SHA-256: 330ec760f11b1da9ad70dc23757ffccfdb799fd3f426e7a08e3edce0893fcae8

Red Hat Enterprise Linux Desktop 7

SRPM
firefox-78.5.0-1.el7_9.src.rpm SHA-256: f5ab52e5360473c032c0b1ab76e8851379940b56dd14c0f967f6cc7db62a72bb
x86_64
firefox-78.5.0-1.el7_9.i686.rpm SHA-256: c8e542cd7345837d6d9d12f5822f1119fa9fcd2e69abedf04e0f069986134412
firefox-78.5.0-1.el7_9.x86_64.rpm SHA-256: 4ef1f1c5c1f4cae5d4b4a6a00df02fb21e3792dd9ebe866090dffe12ef5f7752
firefox-debuginfo-78.5.0-1.el7_9.x86_64.rpm SHA-256: 330ec760f11b1da9ad70dc23757ffccfdb799fd3f426e7a08e3edce0893fcae8

Red Hat Enterprise Linux for IBM z Systems 7

SRPM
firefox-78.5.0-1.el7_9.src.rpm SHA-256: f5ab52e5360473c032c0b1ab76e8851379940b56dd14c0f967f6cc7db62a72bb
s390x
firefox-78.5.0-1.el7_9.s390x.rpm SHA-256: 226a271a5a4de8b692df2116334a2022b67b2a76abd40591e5f5c3af5f176a54
firefox-debuginfo-78.5.0-1.el7_9.s390x.rpm SHA-256: e9ed3642e2897aa0bb4ddd93b3b7bec5be06c040570a74d55ee6dcb915257568

Red Hat Enterprise Linux for Power, big endian 7

SRPM
firefox-78.5.0-1.el7_9.src.rpm SHA-256: f5ab52e5360473c032c0b1ab76e8851379940b56dd14c0f967f6cc7db62a72bb
ppc64
firefox-78.5.0-1.el7_9.ppc64.rpm SHA-256: 1bff6f5ba532c015868486d49f21c336d05aa040bc786c78c6bfacd7ad1f8179
firefox-debuginfo-78.5.0-1.el7_9.ppc64.rpm SHA-256: 47e42b6feed26112aa28a0c47bdc41f6d500c2e0091a93193d8708195c94be00

Red Hat Enterprise Linux for Power, little endian 7

SRPM
firefox-78.5.0-1.el7_9.src.rpm SHA-256: f5ab52e5360473c032c0b1ab76e8851379940b56dd14c0f967f6cc7db62a72bb
ppc64le
firefox-78.5.0-1.el7_9.ppc64le.rpm SHA-256: 66a3a4bb66b5d523a70ebd2c8417e6e6b5da24caa1bfac7db8d81bacaf598056
firefox-debuginfo-78.5.0-1.el7_9.ppc64le.rpm SHA-256: 2b9fca1e48aedc5d98745a5398463e5e6de02db7e3e17ab1da618768ee72da16

Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7

SRPM
firefox-78.5.0-1.el7_9.src.rpm SHA-256: f5ab52e5360473c032c0b1ab76e8851379940b56dd14c0f967f6cc7db62a72bb
s390x
firefox-78.5.0-1.el7_9.s390x.rpm SHA-256: 226a271a5a4de8b692df2116334a2022b67b2a76abd40591e5f5c3af5f176a54
firefox-debuginfo-78.5.0-1.el7_9.s390x.rpm SHA-256: e9ed3642e2897aa0bb4ddd93b3b7bec5be06c040570a74d55ee6dcb915257568

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

SRPM
firefox-78.5.0-1.el7_9.src.rpm SHA-256: f5ab52e5360473c032c0b1ab76e8851379940b56dd14c0f967f6cc7db62a72bb
ppc64
firefox-78.5.0-1.el7_9.ppc64.rpm SHA-256: 1bff6f5ba532c015868486d49f21c336d05aa040bc786c78c6bfacd7ad1f8179
firefox-debuginfo-78.5.0-1.el7_9.ppc64.rpm SHA-256: 47e42b6feed26112aa28a0c47bdc41f6d500c2e0091a93193d8708195c94be00

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

SRPM
firefox-78.5.0-1.el7_9.src.rpm SHA-256: f5ab52e5360473c032c0b1ab76e8851379940b56dd14c0f967f6cc7db62a72bb
ppc64le
firefox-78.5.0-1.el7_9.ppc64le.rpm SHA-256: 66a3a4bb66b5d523a70ebd2c8417e6e6b5da24caa1bfac7db8d81bacaf598056
firefox-debuginfo-78.5.0-1.el7_9.ppc64le.rpm SHA-256: 2b9fca1e48aedc5d98745a5398463e5e6de02db7e3e17ab1da618768ee72da16

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

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