CVE-2022-23645
Assigner: GitHub_M
Published: 2022-02-18T20:50:10
State: PUBLISHED
affected: product: swtpm
vendor: stefanberger
versions: status: affected
version: < 0.5.3
status: affected
version: >= 0.6.0, < 0.6.2
status: affected
version: = 0.7.0
descriptions: value: 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.
metrics: cvssV3_1: attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 6.2
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
problemTypes: descriptions: cweId: CWE-125
description: CWE-125: Out-of-bounds Read
type: CWE
source: advisory: GHSA-2qgm-8xf4-3hqw
discovery: UNKNOWN
title: Out-of-bounds read in swtpm