CVE-2023-21102

NameCVE-2023-21102
DescriptionIn __efi_rt_asm_wrapper of efi-rt-wrapper.S, there is a possible bypass of shadow stack protection due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-260821414References: Upstream kernel
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2fixed
buster (security)4.19.304-1fixed
bullseye5.10.209-2fixed
bullseye (security)5.10.205-2fixed
bookworm6.1.76-1fixed
bookworm (security)6.1.85-1fixed
trixie6.6.15-2fixed
sid6.7.9-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebuster(not affected)
linuxsourcebullseye5.10.178-1
linuxsource(unstable)6.1.8-1

Notes

[buster] - linux <not-affected> (Vulnerable code not present)
https://source.android.com/docs/security/bulletin/2023-05-01
https://git.kernel.org/linus/ff7a167961d1b97e0e205f245f806e564d3505e7 (6.2-rc1)
https://git.kernel.org/linus/18bba1843fc7f264f58c9345d00827d082f9c558 (6.2-rc4)

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