CVEvulnerability
CVE-2021-4115
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-02-21
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 2.1 LOW — AV:L/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-400
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
Affected configurations
• polkit project polkit 0.117
• redhat enterprise linux 8.0
• fedoraproject fedora 34
• fedoraproject fedora 35
• canonical ubuntu linux 20.04
• canonical ubuntu linux 21.10
• debian debian linux 11.0
• oracle zfs storage appliance kit 8.8
Related
Weakness · CWE (1)
- CWE-400 Uncontrolled Resource Consumption weakness
References
- http://packetstormsecurity.com/files/172849/polkit-File-Descriptor-Exhaustion.html packetstormsecurity.com
- https://access.redhat.com/security/cve/cve-2021-4115 Third Party Advisory
- https://gitlab.com/redhat/centos-stream/rpms/polkit/-/merge_requests/6/diffs?commit_id=bf900df04dc390d389e59aa10942b0f2b15c531e Patch, Third Party Advisory
- https://gitlab.freedesktop.org/polkit/polkit/-/issues/141 Exploit, Issue Tracking, Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VGKWCBS6IDZYYDYM2WIWJM5BL7QQTWPF/ lists.fedoraproject.org
- https://www.oracle.com/security-alerts/cpujul2022.html Patch, Third Party Advisory
- http://packetstormsecurity.com/files/172849/polkit-File-Descriptor-Exhaustion.html packetstormsecurity.com
- https://access.redhat.com/security/cve/cve-2021-4115 Third Party Advisory
- https://gitlab.com/redhat/centos-stream/rpms/polkit/-/merge_requests/6/diffs?commit_id=bf900df04dc390d389e59aa10942b0f2b15c531e Patch, Third Party Advisory
- https://gitlab.freedesktop.org/polkit/polkit/-/issues/141 Exploit, Issue Tracking, Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VGKWCBS6IDZYYDYM2WIWJM5BL7QQTWPF/ lists.fedoraproject.org
- https://www.oracle.com/security-alerts/cpujul2022.html Patch, Third Party Advisory