CVEvulnerability

CVE-2022-23645

5.5 MEDIUM Published 2022-02-18 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-02-18
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.2 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
2.1 LOW — AV:L/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-125

Description

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.

Affected configurations

• swtpm project swtpm (< 0.5.3) • swtpm project swtpm (>= 0.6.0 < 0.6.2) • swtpm project swtpm 0.7.0 • redhat enterprise linux 8.0 • fedoraproject fedora 35

Related

Weakness · CWE (1)

  • CWE-125 Out-of-bounds Read weakness

References