Resource exhaustion in Gitlab
CVE-2020-13333
A potential DOS vulnerability was discovered in GitLab versions 13.1, 13.2 and 13.3. The api to update an asset as a link from a release had a regex check which caused exponential number of backtracks for certain user supplied values resulting in high CPU usage.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.021 (79.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Gitlab — versions 13.1.0, >=13.4.0, <13.4.2, >=13.3.0, <13.3.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@gitlab.com (x_refsource_MISC, Broken Link)
- cve@gitlab.com (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@gitlab.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-13333?
- CVE-2020-13333 is a medium-severity vulnerability in Gitlab, classified under Uncontrolled Resource Consumption. CVSS score: 4.3/10. Published 2020-10-06.
- How severe is CVE-2020-13333?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2020-13333 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.