CVE-2023-52616

NameCVE-2023-52616
DescriptionIn the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init When the mpi_ec_ctx structure is initialized, some fields are not cleared, causing a crash when referencing the field when the structure was released. Initially, this issue was ignored because memory for mpi_ec_ctx is allocated with the __GFP_ZERO flag. For example, this error will be triggered when calculating the Za value for SM2 separately.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3842-1, DSA-5681-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)bullseye5.10.218-1fixed
bullseye (security)5.10.221-1fixed
bookworm6.1.94-1fixed
bookworm (security)6.1.99-1fixed
sid, trixie6.9.10-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebuster(not affected)
linuxsourcebullseye5.10.216-1DSA-5681-1
linuxsourcebookworm6.1.82-1
linuxsource(unstable)6.6.15-1
linux-5.10sourcebuster5.10.216-1~deb10u1DLA-3842-1

Notes

[buster] - linux <not-affected> (Vulnerable code not present)
https://git.kernel.org/linus/ba3c5574203034781ac4231acf117da917efcd2a (6.8-rc1)

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