Vulnerability · Published Oct 6, 2020 · Assigned by GitLab

CVE-2020-13333

Medium 4.3

In plain English

A medium-severity security flaw in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 82% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)2.1%top 18.1% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
GitLab	GitLab	>=13.1, <13.2.10>=13.3.0, <13.3.7>=13.4.0, <13.4.2

References

https://gitlab.com/gitlab-org/gitlab/-/issues/218753 x_refsource_MISC
https://hackerone.com/reports/870820 x_refsource_MISC
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13333.json x_refsource_CONFIRM