CVE-2022-4172 Information

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.

Reference

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/