CVE-2021-4115

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
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
redhatCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 1%
VendorProductVersion
polkit_projectpolkit
0.117
redhatenterprise_linux
8.0
canonicalubuntu_linux
20.04
canonicalubuntu_linux
21.10
debiandebian_linux
11.0
oraclezfs_storage_appliance_kit
8.8
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
policykit-1
bullseye (security)
vulnerable
bullseye
no-dsa
buster
not-affected
stretch
not-affected
bookworm
122-3
fixed
sid
125-2
fixed
trixie
125-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
policykit-1
jammy
not-affected
impish
Fixed 0.105-31ubuntu0.2
released
focal
Fixed 0.105-26ubuntu1.3
released
bionic
not-affected
xenial
not-affected
trusty
not-affected
Common Weakness Enumeration
References
http://packetstormsecurity.com/files/172849/polkit-File-Descriptor-Exhaustion.html
https://access.redhat.com/security/cve/cve-2021-4115
https://gitlab.com/redhat/centos-stream/rpms/polkit/-/merge_requests/6/diffs?commit_id=bf900df04dc390d389e59aa10942b0f2b15c531e
https://gitlab.freedesktop.org/polkit/polkit/-/issues/141
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
https://access.redhat.com/security/cve/cve-2021-4115
https://gitlab.com/redhat/centos-stream/rpms/polkit/-/merge_requests/6/diffs?commit_id=bf900df04dc390d389e59aa10942b0f2b15c531e
https://gitlab.freedesktop.org/polkit/polkit/-/issues/141
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VGKWCBS6IDZYYDYM2WIWJM5BL7QQTWPF/
https://www.oracle.com/security-alerts/cpujul2022.html