CVE-2021-4115

CVSS V2 Low 2.1 CVSS V3 Medium 5.5
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
Overview
  • CVE ID
  • CVE-2021-4115
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-02-21T22:15:07
  • Last Modified Date
  • 2022-08-09T00:37:29
Weakness Enumerations
CWE URL
NVD-CWE-Other http://cwe.mitre.org/data/definitions/NVD-Other.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:polkit_project:polkit:0.117:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 2.1
  • Severity
  • LOW
  • Exploitability Score
  • 3.9
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
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@lists.fedoraproject.org/message/VGKWCBS6IDZYYDYM2WIWJM5BL7QQTWPF/ Mailing List Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-4115
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4115
History
Created Old Value New Value Data Type Notes
2022-05-10 15:47:22 Added to TrackCVE
2022-12-06 10:30:40 2022-02-21T22:15Z 2022-02-21T22:15:07 CVE Published Date updated
2022-12-06 10:30:40 2022-08-09T00:37:29 CVE Modified Date updated
2022-12-06 10:30:40 Analyzed Vulnerability Status updated
2022-12-06 10:30:45 References updated