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firefox: thunderbird: Use-after-free during concurrent delazification

🗓️ 12 Feb 2025 04:17:00Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

A flaw in Firefox and Thunderbird causes a use-after-free from a race during concurrent delazification.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.8aarch64thunderbird0:128.7.0-1.el8_8thunderbird-0:128.7.0-1.el8_8.aarch64.rpm
Red Hat Enterprise Linux8.8ppc64lethunderbird0:128.7.0-1.el8_8thunderbird-0:128.7.0-1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8s390xthunderbird0:128.7.0-1.el8_8thunderbird-0:128.7.0-1.el8_8.s390x.rpm
Red Hat Enterprise Linux8.8x86_64thunderbird0:128.7.0-1.el8_8thunderbird-0:128.7.0-1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8.8aarch64thunderbird-debuginfo0:128.7.0-1.el8_8thunderbird-debuginfo-0:128.7.0-1.el8_8.aarch64.rpm
Red Hat Enterprise Linux8.8ppc64lethunderbird-debuginfo0:128.7.0-1.el8_8thunderbird-debuginfo-0:128.7.0-1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8s390xthunderbird-debuginfo0:128.7.0-1.el8_8thunderbird-debuginfo-0:128.7.0-1.el8_8.s390x.rpm
Red Hat Enterprise Linux8.8x86_64thunderbird-debuginfo0:128.7.0-1.el8_8thunderbird-debuginfo-0:128.7.0-1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8.8aarch64thunderbird-debugsource0:128.7.0-1.el8_8thunderbird-debugsource-0:128.7.0-1.el8_8.aarch64.rpm
Red Hat Enterprise Linux8.8ppc64lethunderbird-debugsource0:128.7.0-1.el8_8thunderbird-debugsource-0:128.7.0-1.el8_8.ppc64le.rpm
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13 Apr 2026 15:36Current
7.3High risk
Vulners AI Score7.3
CVSS 3.17.5 - 9.8
EPSS0.00436
SSVC
5