CVE-2022-4172 | BDVDB-2026-189504 Detail
QEMU (ACPI ERST)
Description#
An integer overflow and buffer overflow issues were found in the ACPI Error Record Serialization Table (ERST) device of QEMU in the read_erst_record() and write_erst_record() functions. Both issues may allow the guest to overrun the host buffer allocated for the ERST memory device. A malicious guest could use these flaws to crash the QEMU process on the host.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: local.
Weaknesses#
- CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
References#
- https://lore.kernel.org/qemu-devel/20221024154233.1043347-1-lk%40c--e.de/
- https://gitlab.com/qemu-project/qemu/-/issues/1268
- https://gitlab.com/qemu-project/qemu/-/commit/defb7098
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
- https://security.netapp.com/advisory/ntap-20230127-0013/
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.