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Status published
Medium
CVE-2021-4115
There is a flaw in polkit which can allow an...
Vulnerability Description
There is a flaw in polkit which can allow an unprivileged user to cause polkit to crash, due to process file descriptor exhaustion. The highest threat from this vulnerability is to availability. NOTE: Polkit process outage duration is tied to the failing process being reaped and a new one being spawned
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://access.redhat.com/security/cve/cve-2021-4115
- https://gitlab.freedesktop.org/polkit/polkit/-/issues/141
- https://gitlab.com/redhat/centos-stream/rpms/polkit/-/merge_requests/6/diffs?commit_id=bf900df04dc390d389e59aa10942b0f2b15c531e
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VGKWCBS6IDZYYDYM2WIWJM5BL7QQTWPF/
- https://www.oracle.com/security-alerts/cpujul2022.html
- http://packetstormsecurity.com/files/172849/polkit-File-Descriptor-Exhaustion.html
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Affected Vendor
Affected Software
polkitd
Vulnerable Versions:
0.117
Timeline
Official Publish:
February 21st, 2022
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H