Improper Input Validation The advisory has been revoked - it doesn't affect any version of package tomcat-lib (opens in a new tab)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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-RHEL9-TOMCATLIB-9430956
- published15 Mar 2025
- disclosed10 Oct 2023
Introduced: 10 Oct 2023
CVE-2023-45648 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tomcat-lib package and not the tomcat-lib package as distributed by RHEL.
Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially crafted, invalid trailer header could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy.
Older, EOL versions may also be affected.
Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.
References
- https://access.redhat.com/security/cve/CVE-2023-45648
- http://www.openwall.com/lists/oss-security/2023/10/10/10
- https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html
- https://security.netapp.com/advisory/ntap-20231103-0007/
- https://www.debian.org/security/2023/dsa-5521
- https://www.debian.org/security/2023/dsa-5522
- https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-45648.yaml