High severity · published Dec 6, 2023
CVE-2023-2861
A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU
7.1
CVSS
0.4%
EPSS
No
On KEV
Description
A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QE
Qemu · Qemu
before 8.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-2861
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-2861
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-2861
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2219266
lists.debian.org
https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html
security.netapp.com
https://security.netapp.com/advisory/ntap-20240125-0005/
security.netapp.com
https://security.netapp.com/advisory/ntap-20240229-0002/
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