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CVE-2022-23645

Out-of-bounds read in swtpm

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.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Redhat Swtpm Project
Products
Fedora Enterprise Linux Swtpm
CVE-2020-28407

swtpm: symlink issue may lead to privilege escalation

In swtpm before 0.4.2 and 0.5.x before 0.5.1, a local attacker may be able to overwrite arbitrary files via a symlink attack against a temporary file such as TMP2-00.permall.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Swtpm Project
Products
Swtpm