Medium severity · published Nov 29, 2022
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()…
6.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Fedora · Fedoraproject
37 · source: NVD
QE
Qemu · Qemu
7.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-4172
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-4172
Patch
https://gitlab.com/qemu-project/qemu/-/commit/defb7098
Exploit
https://gitlab.com/qemu-project/qemu/-/issues/1268
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
lore.kernel.org
https://lore.kernel.org/qemu-devel/20221024154233.1043347-1-lk%40c--e.de/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20230127-0013/
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