High severity · published Nov 7, 2022
CVE-2022-3872
An off-by-one read/write issue was found in the SDHCI device of QEMU
8.6
CVSS
0.9%
EPSS
No
On KEV
Description
An off-by-one read/write issue was found in the SDHCI device of QEMU. It occurs when reading/writing the Buffer Data Port Register in sdhci_read_dataport and sdhci_write_dataport, respectively, if data_count == block_size. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QE
Qemu · Qemu
before 7.1.0; 7.1.0; 7.1.0; 7.1.0; 7.1.0; 7.1.0; +1 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-3872
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-3872
Mailing List
https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg01068.html
Third Party Advisory
https://security.netapp.com/advisory/ntap-20221215-0005/
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