HTTP Response Splitting The advisory has been revoked - it doesn't affect any version of package python27-urllib3 (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-AMZN201803-PYTHON27URLLIB3-3157710
- published6 Dec 2022
- disclosed30 Sept 2020
Introduced: 30 Sep 2020
CVE-2020-26137 (opens in a new tab)Amendment
The Amazon-Linux security team deemed this advisory irrelevant for Amazon-Linux:2018.03.
NVD Description
Note: Versions mentioned in the description apply only to the upstream python27-urllib3 package and not the python27-urllib3 package as distributed by Amazon-Linux.
urllib3 before 1.25.9 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of putrequest(). NOTE: this is similar to CVE-2020-26116.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26137
- https://bugs.python.org/issue39603
- https://github.com/urllib3/urllib3/commit/1dd69c5c5982fae7c87a620d487c2ebf7a6b436b
- https://github.com/urllib3/urllib3/pull/1800
- https://lists.debian.org/debian-lts-announce/2021/06/msg00015.html
- https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html
- https://usn.ubuntu.com/4570-1/
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html