Important: firefox security update

Topic

An update for firefox is now available for Red Hat Enterprise Linux 8.

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 102.10.0 ESR.

Security Fix(es):

• MFSA-TMP-2023-0001 Mozilla: Double-free in libwebp (BZ#2186102)
• Mozilla: Fullscreen notification obscured (CVE-2023-29533)
• Mozilla: Potential Memory Corruption following Garbage Collector compaction (CVE-2023-29535)
• Mozilla: Invalid free from JavaScript code (CVE-2023-29536)
• Mozilla: Memory safety bugs fixed in Firefox 112 and Firefox ESR 102.10 (CVE-2023-29550)
• Mozilla: Memory Corruption in Safe Browsing Code (CVE-2023-1945)
• Mozilla: Content-Disposition filename truncation leads to Reflected File Download (CVE-2023-29539)
• Mozilla: Files with malicious extensions could have been downloaded unsafely on Linux (CVE-2023-29541)
• Mozilla: Incorrect optimization result on ARM64 (CVE-2023-29548)

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 8 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for ARM 64 8 aarch64

Fixes

• BZ - 2186101 - CVE-2023-29533 Mozilla: Fullscreen notification obscured
• BZ - 2186102 - MFSA-TMP-2023-0001 Mozilla: Double-free in libwebp
• BZ - 2186103 - CVE-2023-29535 Mozilla: Potential Memory Corruption following Garbage Collector compaction
• BZ - 2186104 - CVE-2023-29536 Mozilla: Invalid free from JavaScript code
• BZ - 2186105 - CVE-2023-29539 Mozilla: Content-Disposition filename truncation leads to Reflected File Download
• BZ - 2186106 - CVE-2023-29541 Mozilla: Files with malicious extensions could have been downloaded unsafely on Linux
• BZ - 2186109 - CVE-2023-1945 Mozilla: Memory Corruption in Safe Browsing Code
• BZ - 2186110 - CVE-2023-29548 Mozilla: Incorrect optimization result on ARM64
• BZ - 2186111 - CVE-2023-29550 Mozilla: Memory safety bugs fixed in Firefox 112 and Firefox ESR 102.10

CVEs

• CVE-2023-1945
• CVE-2023-1999
• CVE-2023-29533
• CVE-2023-29535
• CVE-2023-29536
• CVE-2023-29539
• CVE-2023-29541
• CVE-2023-29548
• CVE-2023-29550

References

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