High severity · published Aug 29, 2022
CVE-2022-0358
A flaw was found in the QEMU virtio-fs shared file system daemon (virtiofsd) implementation
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
A flaw was found in the QEMU virtio-fs shared file system daemon (virtiofsd) implementation. This flaw is strictly related to CVE-2018-13405. A local guest user can create files in the directories shared by virtio-fs with unintended group ownership in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of the group. This could allow a malicious unprivileged user inside the guest to gain access to resources accessible to the root group, potentially escalating their privileges within the guest. A malicious local user in the host might also leverage this unexpected executable file created by the guest to escalate their privileges on the host system.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
8.0 · source: NVD
QE
Qemu · Qemu
before 6.2.0-7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-0358
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-0358
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2022-0358
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2044863
Patch
https://gitlab.com/qemu-project/qemu/-/commit/449e8171f96a6a944d1f3b7d3627ae059eae21ca
Third Party Advisory
https://security.netapp.com/advisory/ntap-20221007-0008/
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