RHSA-2023:5428 — Security Advisory

An update for thunderbird 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.

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 115.3.1.

Security Fix(es):

• firefox: use-after-free in workers (CVE-2023-3600)

• Mozilla: Out-of-bounds write in PathOps (CVE-2023-5169)

• Mozilla: Use-after-free in Ion Compiler (CVE-2023-5171)

• Mozilla: Memory safety bugs fixed in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3 (CVE-2023-5176)

• libvpx: Heap buffer overflow in vp8 encoding in libvpx (CVE-2023-5217)

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.