CVE-2022-4172

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. Arbitrary code execution was deemed unlikely.

Red Hat Enterprise Linux 6, 7, 8 and RHEL Advanced Virtualization are not affected by this CVE as they did not include support for ACPI ERST (introduced upstream in version 7.0.0).

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.