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libX11: InitExt.c can overwrite unintended portions of the Display structure if the extension request leads to a buffer overflow

🗓️ 07 Nov 2023 08:56:42Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 6 Views

libX11 InitExt.c allows out-of-bounds IDs to overwrite the Display structure, risking a crash.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9aarch64libx111.7.0-8.el9libx11-1.7.0-8.el9.aarch64.rpm
Red Hat Enterprise Linux9i686libx111.7.0-8.el9libx11-1.7.0-8.el9.i686.rpm
Red Hat Enterprise Linux9ppc64lelibx111.7.0-8.el9libx11-1.7.0-8.el9.ppc64le.rpm
Red Hat Enterprise Linux9s390xlibx111.7.0-8.el9libx11-1.7.0-8.el9.s390x.rpm
Red Hat Enterprise Linux9x86_64libx111.7.0-8.el9libx11-1.7.0-8.el9.x86_64.rpm
Red Hat Enterprise Linux9noarchlibx11-common1.7.0-8.el9libx11-common-1.7.0-8.el9.noarch.rpm
Red Hat Enterprise Linux9aarch64libx11-debuginfo1.7.0-8.el9libx11-debuginfo-1.7.0-8.el9.aarch64.rpm
Red Hat Enterprise Linux9i686libx11-debuginfo1.7.0-8.el9libx11-debuginfo-1.7.0-8.el9.i686.rpm
Red Hat Enterprise Linux9ppc64lelibx11-debuginfo1.7.0-8.el9libx11-debuginfo-1.7.0-8.el9.ppc64le.rpm
Red Hat Enterprise Linux9s390xlibx11-debuginfo1.7.0-8.el9libx11-debuginfo-1.7.0-8.el9.s390x.rpm
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21 Nov 2025 18:49Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.17.5
EPSS0.01656
6