#VU72299 Integer overflow in QEMU - CVE-2022-4172
Published: February 15, 2023
Vulnerability identifier: #VU72299
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-4172
CWE-ID: CWE-190
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
QEMU
QEMU
Software vendor:
QEMU
QEMU
Description
The vulnerability allows a malicious guest to perform a denial of service (DoS) attack.
The vulnerability exists due to integer overflow within the read_erst_record() and write_erst_record() functions in the ACPI Error Record Serialization Table (ERST) device of QEMU. A malicious guest can overrun the host buffer allocated for the ERST memory device and crash the QEMU process on the host.
Remediation
Install updates from vendor's website.
External links
- https://gitlab.com/qemu-project/qemu/-/commit/defb7098
- https://gitlab.com/qemu-project/qemu/-/issues/1268
- https://lore.kernel.org/qemu-devel/20221024154233.1043347-1-lk@c--e.de/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
- https://security.netapp.com/advisory/ntap-20230127-0013/