An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.8 before 15.5.7, all versions starting from 15.6 before 15.6.4, all versions starting from 15.7 before 15.7.2. An attacker may cause Denial of Service on a GitLab instance by exploiting a regex issue in how the application parses user agents.
The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.
Link | Tags |
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https://gitlab.com/gitlab-org/gitlab/-/issues/383598 | broken link |
https://hackerone.com/reports/1772063 | third party advisory permissions required |
https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-4131.json | vendor advisory |