#VU60731 Out-of-bounds read in swtpm - CVE-2022-23645
Published: February 21, 2022 / Updated: December 2, 2022
Vulnerability identifier: #VU60731
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-23645
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
swtpm
swtpm
Software vendor:
Stefan Berger
Stefan Berger
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition when the byte array representing the state of the TPM is accessed. A remote attacker can send a specially crafted header, trigger out-of-bounds read error and cause a denial of service condition on the system.
Remediation
Install updates from vendor's website.
External links
- https://github.com/stefanberger/swtpm/security/advisories/GHSA-2qgm-8xf4-3hqw
- https://github.com/stefanberger/swtpm/commit/9f740868fc36761de27df3935513bdebf8852d19
- https://github.com/stefanberger/swtpm/releases/tag/v0.5.3
- https://github.com/stefanberger/swtpm/releases/tag/v0.6.2
- https://github.com/stefanberger/swtpm/releases/tag/v0.7.1
- https://github.com/stefanberger/swtpm/releases/tag/v0.8.0