Medium severity5.5NVD Advisory· Published Feb 21, 2022· Updated Jun 17, 2026
CVE-2021-4115
CVE-2021-4115
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
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
27- cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
- cpe:2.3:a:polkit_project:polkit:0.117:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*+ 1 more
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- polkit/polkitdescription
- osv-coords17 versionspkg:rpm/almalinux/polkitpkg:rpm/almalinux/polkit-develpkg:rpm/almalinux/polkit-docspkg:rpm/almalinux/polkit-libspkg:rpm/opensuse/polkit&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/polkit&distro=openSUSE%20Tumbleweedpkg:rpm/suse/polkit&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/polkit&distro=SUSE%20Linux%20Enterprise%20Micro%205.0pkg:rpm/suse/polkit&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/polkit&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/polkit&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2015%20SP2pkg:rpm/suse/polkit&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/polkit&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/polkit&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/polkit&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/polkit&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/polkit&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP5
< 0.115-13.el8_5.2+ 16 more
- (no CPE)range: < 0.115-13.el8_5.2
- (no CPE)range: < 0.115-13.el8_5.2
- (no CPE)range: < 0.115-13.el8_5.2
- (no CPE)range: < 0.115-13.el8_5.2
- (no CPE)range: < 0.116-3.9.1
- (no CPE)range: < 0.120-3.1
- (no CPE)range: < 0.116-3.9.1
- (no CPE)range: < 0.116-3.9.1
- (no CPE)range: < 0.116-3.9.1
- (no CPE)range: < 0.116-3.9.1
- (no CPE)range: < 0.116-3.9.1
- (no CPE)range: < 0.113-5.27.1
- (no CPE)range: < 0.116-3.9.1
- (no CPE)range: < 0.113-5.27.1
- (no CPE)range: < 0.116-3.9.1
- (no CPE)range: < 0.113-5.27.1
- (no CPE)range: < 0.113-5.27.1
Patches
Vulnerability mechanics
References
6- gitlab.com/redhat/centos-stream/rpms/polkit/-/merge_requests/6/diffsnvdPatchThird Party Advisory
- www.oracle.com/security-alerts/cpujul2022.htmlnvdPatchThird Party Advisory
- gitlab.freedesktop.org/polkit/polkit/-/issues/141nvdExploitIssue TrackingPatchThird Party Advisory
- access.redhat.com/security/cve/cve-2021-4115nvdThird Party Advisory
- packetstormsecurity.com/files/172849/polkit-File-Descriptor-Exhaustion.htmlnvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VGKWCBS6IDZYYDYM2WIWJM5BL7QQTWPF/nvd
News mentions
0No linked articles in our index yet.