RHSA-2022:6711 - Security Advisory

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 102.3.0 ESR.

Security Fix(es):

• Mozilla: Bypassing FeaturePolicy restrictions on transient pages (CVE-2022-40959)
• Mozilla: Data-race when parsing non-UTF-8 URLs in threads (CVE-2022-40960)
• Mozilla: Memory safety bugs fixed in Firefox 105 and Firefox ESR 102.3 (CVE-2022-40962)
• Mozilla: Bypassing Secure Context restriction for cookies with __Host and __Secure prefix (CVE-2022-40958)
• Mozilla: Content-Security-Policy base-uri bypass (CVE-2022-40956)
• Mozilla: Incoherent instruction cache when building WASM on ARM64 (CVE-2022-40957)

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 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

Fixes

• BZ - 2128792 - CVE-2022-40959 Mozilla: Bypassing FeaturePolicy restrictions on transient pages
• BZ - 2128793 - CVE-2022-40960 Mozilla: Data-race when parsing non-UTF-8 URLs in threads
• BZ - 2128794 - CVE-2022-40958 Mozilla: Bypassing Secure Context restriction for cookies with __Host and __Secure prefix
• BZ - 2128795 - CVE-2022-40956 Mozilla: Content-Security-Policy base-uri bypass
• BZ - 2128796 - CVE-2022-40957 Mozilla: Incoherent instruction cache when building WASM on ARM64
• BZ - 2128797 - CVE-2022-40962 Mozilla: Memory safety bugs fixed in Firefox 105 and Firefox ESR 102.3

CVEs

• CVE-2022-40956
• CVE-2022-40957
• CVE-2022-40958
• CVE-2022-40959
• CVE-2022-40960
• CVE-2022-40962

References

• https://access.redhat.com/security/updates/classification/#important