RHSA-2023:6162 - 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 115.4.0 ESR.

Security Fix(es):

• Mozilla: Queued up rendering could have allowed websites to clickjack (CVE-2023-5721)
• Mozilla: Memory safety bugs fixed in Firefox 119, Firefox ESR 115.4, and Thunderbird 115.4 (CVE-2023-5730)
• libvpx: crash related to VP9 encoding in libvpx (CVE-2023-44488)
• Mozilla: Large WebGL draw could have led to a crash (CVE-2023-5724)
• Mozilla: WebExtensions could open arbitrary URLs (CVE-2023-5725)
• Mozilla: Improper object tracking during GC in the JavaScript engine could have led to a crash. (CVE-2023-5728)
• Mozilla: Address bar spoofing via bidirectional characters (CVE-2023-5732)

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 - 2241806 - CVE-2023-44488 libvpx: crash related to VP9 encoding in libvpx
• BZ - 2245896 - CVE-2023-5721 Mozilla: Queued up rendering could have allowed websites to clickjack
• BZ - 2245898 - CVE-2023-5732 Mozilla: Address bar spoofing via bidirectional characters
• BZ - 2245899 - CVE-2023-5724 Mozilla: Large WebGL draw could have led to a crash
• BZ - 2245900 - CVE-2023-5725 Mozilla: WebExtensions could open arbitrary URLs
• BZ - 2245903 - CVE-2023-5728 Mozilla: Improper object tracking during GC in the JavaScript engine could have led to a crash.
• BZ - 2245906 - CVE-2023-5730 Mozilla: Memory safety bugs fixed in Firefox 119, Firefox ESR 115.4, and Thunderbird 115.4

CVEs

• CVE-2023-5721
• CVE-2023-5724
• CVE-2023-5725
• CVE-2023-5728
• CVE-2023-5730
• CVE-2023-5732
• CVE-2023-44488

References

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