What’s Vulnerable › Vulnerabilities

CVE-2022-4172

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-11-29 · updated 2026-06-17
• Weakness: CWE-120

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.

Affected products

• Fedoraproject Fedora: 37
• QEMU: 7.0.0

References

• https://gitlab.com/qemu-project/qemu/-/commit/defb7098
• https://gitlab.com/qemu-project/qemu/-/issues/1268
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
• https://lore.kernel.org/qemu-devel/20221024154233.1043347-1-lk%40c--e.de/
• https://security.netapp.com/advisory/ntap-20230127-0013/
• https://gitlab.com/qemu-project/qemu/-/commit/defb7098
• https://gitlab.com/qemu-project/qemu/-/issues/1268
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
• https://lore.kernel.org/qemu-devel/20221024154233.1043347-1-lk%40c--e.de/
• https://security.netapp.com/advisory/ntap-20230127-0013/

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