CVE-2021-39917 — Incorrect Comparison in Gitlab

CWE-697 — Incorrect Comparison5 documents5 sources
Severity
6.5MEDIUMNVD
EPSS
0.4%
top 40.18%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
GitlabDebian GitlabGitlab CE
Timeline
PublishedDec 13
Latest updateDec 14

Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.9 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. A regular expression related to quick actions features was susceptible to catastrophic backtracking that could cause a DOS attack.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages5 packages

▶NVDgitlab/gitlab12.9.0 — 14.3.6+2
▶debiandebian/gitlab< gitlab 15.10.8+ds1-2 (sid)
▶CVEListV5gitlab/gitlab>=12.9, <14.3.6, >=14.4, <14.4.4, >=14.5, <14.5.2+2
▶gitlabgitlab/gitlab

🔴Vulnerability Details

2
GHSA
GHSA-86j2-r9c9-2h84: An issue has been discovered in GitLab CE/EE affecting all versions starting from 12↗2021-12-14
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OSV
CVE-2021-39917: An issue has been discovered in GitLab CE/EE affecting all versions starting from 12↗2021-12-13
▶

📋Vendor Advisories

2
GitLab
CVE-2021-39917: An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.9 before 14.3.6, all versions starting from 14.4 before 14.4.4, a↗2021-12-13
▶
Debian
CVE-2021-39917: gitlab - An issue has been discovered in GitLab CE/EE affecting all versions starting fro...↗2021
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