CVE-2022-4172 Integer overflow in QEMU (ACPI ERST)

What is CVE-2022-4172?

CVE-2022-4172 is a medium-severity vulnerability in Fedoraproject Fedora, published on 29 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-120

Which versions are affected by CVE-2022-4172?

It affects 2 products.

Products include Fedoraproject Fedora, Qemu Qemu.

How do I fix CVE-2022-4172?

Apply the vendor's patch.

Is CVE-2022-4172 being exploited?

There is no known exploitation of CVE-2022-4172 in the wild and no public exploit code.

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All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2022-4172, DEBIAN-CVE-2022-4172, GHSA-7m5q-w7p8-x8h4.