CVE-2021-0938

NameCVE-2021-0938
DescriptionIn memzero_explicit of compiler-clang.h, there is a possible bypass of defense in depth due to uninitialized data. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-171418586References: Upstream kernel
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.235-1fixed
buster (security)4.19.249-2fixed
bullseye5.10.127-1fixed
bullseye (security)5.10.127-2fixed
bookworm, sid5.18.14-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcestretch(not affected)
linuxsourcebuster4.19.171-1
linuxsource(unstable)5.9.15-1unimportant

Notes

[stretch] - linux <not-affected> (Vulnerable code introduced later)
https://source.android.com/security/bulletin/pixel/2021-10-01
https://git.kernel.org/linus/3347acc6fcd4ee71ad18a9ff9d9dac176b517329

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