CVE-2021-25329
Incomplete fix for CVE-2020-9484
- State
- Published
- Severity
- Not scored
- Published
- Mar 1, 2021
- Updated
- Oct 8, 2026
- Reserved
- Jan 19, 2021
Description
The fix for CVE-2020-9484 was incomplete. When using Apache Tomcat 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41, 8.5.0 to 8.5.61 or 7.0.0. to 7.0.107 with a configuration edge case that was highly unlikely to be used, the Tomcat instance was still vulnerable to CVE-2020-9494. Note that both the previously published prerequisites for CVE-2020-9484 and the previously published mitigations for CVE-2020-9484 also apply to this issue.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
Apache TomcatApache Software Foundation |
|
References
- https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf%40%3Cannounce.tomcat.apache.org%3E
- [tomcat-dev] 20210301 [SECURITY] CVE-2021-25329 Apache Tomcat Incomplete fix for CVE-2020-9484 (RCE via session persistence)mailing-list
- [announce] 20210301 [SECURITY] CVE-2021-25329 Apache Tomcat Incomplete fix for CVE-2020-9484 (RCE via session persistence)mailing-list
- [tomcat-users] 20210301 [SECURITY] CVE-2021-25329 Apache Tomcat Incomplete fix for CVE-2020-9484 (RCE via session persistence)mailing-list
- [tomcat-dev] 20210301 svn commit: r1887027 - in /tomcat/site/trunk: docs/security-10.html docs/security-7.html docs/security-8.html docs/security-9.html xdocs/security-10.xml xdocs/security-7.xml xdocs/security-8.xml xdocs/security-9.xmlmailing-list
- [oss-security] 20210301 CVE-2021-25329: Apache Tomcat Incomplete fix for CVE-2020-9484mailing-list
- [debian-lts-announce] 20210316 [SECURITY] [DLA 2596-1] tomcat8 security updatemailing-list
- DSA-4891vendor-advisory
- [tomcat-users] 20210701 What is "h2c"? What is CVE-2021-25329? Re: Most recent security-related update to 8.5mailing-list
- [tomcat-users] 20210701 Re: What is "h2c"? What is CVE-2021-25329? Re: Most recent security-related update to 8.5mailing-list
- [tomcat-users] 20210702 Re: What is "h2c"? What is CVE-2021-25329? Re: Most recent security-related update to 8.5mailing-list
- [tomcat-users] 20210702 Re: CVE-2021-25329, was Re: Most recent security-related update to 8.5mailing-list
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://security.netapp.com/advisory/ntap-20210409-0002/
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- GLSA-202208-34vendor-advisory
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