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Mozilla: Potential use-after-free in uses of nsTArray

🗓️ 30 Nov 2020 10:40:49Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

Potential use-after-free in nsTArray when Compact() reallocates without updating pointers; affects Firefox before 83, and Thunderbird before 78.5.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64firefox0:78.5.0-1.el8_3firefox-0:78.5.0-1.el8_3.aarch64.rpm
Red Hat Enterprise Linux8ppc64lefirefox0:78.5.0-1.el8_3firefox-0:78.5.0-1.el8_3.ppc64le.rpm
Red Hat Enterprise Linux8s390xfirefox0:78.5.0-1.el8_3firefox-0:78.5.0-1.el8_3.s390x.rpm
Red Hat Enterprise Linux8x86_64firefox0:78.5.0-1.el8_3firefox-0:78.5.0-1.el8_3.x86_64.rpm
Red Hat Enterprise Linux8aarch64firefox-debuginfo0:78.5.0-1.el8_3firefox-debuginfo-0:78.5.0-1.el8_3.aarch64.rpm
Red Hat Enterprise Linux8ppc64lefirefox-debuginfo0:78.5.0-1.el8_3firefox-debuginfo-0:78.5.0-1.el8_3.ppc64le.rpm
Red Hat Enterprise Linux8s390xfirefox-debuginfo0:78.5.0-1.el8_3firefox-debuginfo-0:78.5.0-1.el8_3.s390x.rpm
Red Hat Enterprise Linux8x86_64firefox-debuginfo0:78.5.0-1.el8_3firefox-debuginfo-0:78.5.0-1.el8_3.x86_64.rpm
Red Hat Enterprise Linux8aarch64firefox-debugsource0:78.5.0-1.el8_3firefox-debugsource-0:78.5.0-1.el8_3.aarch64.rpm
Red Hat Enterprise Linux8ppc64lefirefox-debugsource0:78.5.0-1.el8_3firefox-debugsource-0:78.5.0-1.el8_3.ppc64le.rpm
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21 Nov 2025 18:18Current
7.3High risk
Vulners AI Score7.3
CVSS 3.18.8
CVSS 29.3
EPSS0.01544
5