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Mageia 8 Moderate: 2022-0112 Out-Of-Bounds Access in swtpm

mageia
Calendar Grey March 23, 2022
Dist Mageia Esm H88
Recent swtpm releases tackle a critical out-of-bounds vulnerability present in Mageia 8. To maintain security, it is essential to update to the patched versions.
swtpm is a libtpms-based TPM emulator with socket, character device, and Linux CUSE interface

Summary

swtpm is a libtpms-based TPM emulator with socket, character device, and Linux CUSE interface. Versions prior to 0.5.3, 0.6.2, and 0.7.1 are vulnerable to out-of-bounds read. A specially crafted header of swtpm's state, where the blobheader's hdrsize indicator has an invalid value, may cause an out-of-bounds access when the byte array representing the state of the TPM is accessed. This will likely crash swtpm or prevent it from starting since the state cannot be understood. Users should upgrade to swtpm v0.5.3, v0.6.2, or v0.7.1 to receive a patch. There are currently no known workarounds. (CVE-2022-23645)

References

- https://bugs.mageia.org/show_bug.cgi?id=30125

- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/WL735FW266GO4C2JX4CJBOIOB7R7AY5A/

- https://www.cve.org/CVERecord?id=CVE-2022-23645

Resolution

SRPMS

- 8/core/swtpm-0.7.1-1.mga8

Severity
important
Lowest
Low
Medium
High
Critical

Publication date: 23 Mar 2022
URL: https://advisories.mageia.org/MGASA-2022-0112.html
Type: security
CVE: CVE-2022-23645

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