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CVE-2022-4172

Date: November 29, 2022

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.

Language: C

Severity Score

Related Resources (10)

https://security-tracker.debian.org/tracker/CVE-2022-4172
https://security.netapp.com/advisory/ntap-20230127-0013/
https://gitlab.com/qemu-project/qemu/-/issues/1268
https://lore.kernel.org/qemu-devel/20221024154233.1043347-1-lk@c--e.de/
https://access.redhat.com/security/cve/CVE-2022-4172
https://nvd.nist.gov/vuln/detail/CVE-2022-4172
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
https://gitlab.com/qemu-project/qemu/-/commit/defb7098
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-4172
https://www.mend.io/vulnerability-database/CVE-2022-4172

Severity Score

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CWE-120

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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