| Name | CVE-2021-25122 |
| Description | When responding to new h2c connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41 and 8.5.0 to 8.5.61 could duplicate request headers and a limited amount of request body from one request to another meaning user A and user B could both see the results of user A's request. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more) |
| References | DLA-2594-1, DSA-4891-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| tomcat9 (PTS) | buster | 9.0.31-1~deb10u6 | fixed |
| buster (security) | 9.0.31-1~deb10u7 | fixed | |
| bullseye (security), bullseye | 9.0.43-2~deb11u4 | fixed | |
| bookworm, sid | 9.0.70-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| tomcat7 | source | stretch | (not affected) | |||
| tomcat7 | source | (unstable) | (unfixed) | |||
| tomcat8 | source | stretch | 8.5.54-0+deb9u6 | DLA-2594-1 | ||
| tomcat8 | source | (unstable) | (unfixed) | |||
| tomcat9 | source | buster | 9.0.31-1~deb10u4 | DSA-4891-1 | ||
| tomcat9 | source | (unstable) | 9.0.43-1 |
[stretch] - tomcat7 <not-affected> (Vulnerable code introduced later)
https://www.openwall.com/lists/oss-security/2021/03/01/1
https://github.com/apache/tomcat/commit/d47c20a776e8919eaca8da9390a32bc8bf8210b1 (9.0.43)
https://github.com/apache/tomcat/commit/bb0e7c1e0d737a0de7d794572517bce0e91d30fa (8.5.63)