Inefficient Regular Expression Complexity Affecting gitlab package, versions <16.4.4+ds2-2


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.05% (23rd percentile)

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  • Snyk ID SNYK-DEBIANUNSTABLE-GITLAB-6041979
  • published 1 Nov 2023
  • disclosed 6 Nov 2023

How to fix?

Upgrade Debian:unstable gitlab to version 16.4.4+ds2-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gitlab package and not the gitlab package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.3 before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1. A Regular Expression Denial of Service was possible by adding a large string in timeout input in gitlab-ci.yml file.

CVSS Scores

version 3.1
Expand this section

NVD

Recommended
6.5 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High