CVE-2020-24455

NameCVE-2020-24455
DescriptionMissing initialization of a variable in the TPM2 source may allow a privileged user to potentially enable an escalation of privilege via local access. This affects tpm2-tss before 3.0.1 and before 2.4.3.
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
tpm2-tss (PTS)buster2.1.0-4fixed
bullseye3.0.3-2fixed
bookworm3.2.1-3fixed
trixie4.0.1-7fixed
sid4.0.1-7.1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
tpm2-tsssourcebuster(not affected)
tpm2-tsssource(unstable)3.0.1-1

Notes

[buster] - tpm2-tss <not-affected> (Vulnerable code introduced later)
https://github.com/tpm2-software/tpm2-tss/commit/0cc5f0e12694f3780a8512fc37a7dbc542ea4330 (master)
https://github.com/tpm2-software/tpm2-tss/commit/9536b79cd5a13884a7e4de7a571f72530180c20b (3.0.1)
https://github.com/tpm2-software/tpm2-tss/commit/bf24b0ef0fa8de9300a323f70a097a1afd818439 (2.4.5)

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