CVE-2023-34981
Fixed in a distro release EPSS 1%CVSS 7.5
A regression in the fix for bug 66512 in Apache Tomcat 11.0.0-M5, 10.1.8, 9.0.74 and 8.5.88 meant that, if a response did not include any HTTP headers no AJP SEND_HEADERS messare woudl be sent for the response which in turn meant that at least one AJP proxy (mod_proxy_ajp) would use the response headers from the previous request leading to an information leak.
Products: Apache Software Foundation Apache Tomcat, Apache Tomcat
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Maven | org.apache.tomcat.embed:tomcat-embed-core | 11.0.0-M6 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | 10.1.9 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | 9.0.75 |
| Maven | org.apache.tomcat:tomcat-coyote | 8.5.89 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian:13 | tomcat10 | 10.1.10-1 |
| Debian:14 | tomcat10 | 10.1.10-1 |
| Ubuntu:22.04:LTS | tomcat9 | no fix |
| Ubuntu:24.04:LTS | tomcat9 | no fix |
| Ubuntu:25.04 | tomcat9 | no fix |
| Ubuntu:Pro:14.04:LTS | tomcat6 | no fix |
| Ubuntu:Pro:14.04:LTS | tomcat7 | no fix |
| Ubuntu:Pro:16.04:LTS | tomcat6 | no fix |
| Ubuntu:Pro:16.04:LTS | tomcat7 | no fix |
| Ubuntu:Pro:16.04:LTS | tomcat8 | no fix |
| Ubuntu:Pro:18.04:LTS | tomcat7 | no fix |
| Ubuntu:Pro:18.04:LTS | tomcat8 | no fix |
| Ubuntu:Pro:18.04:LTS | tomcat9 | no fix |
| Ubuntu:Pro:20.04:LTS | tomcat9 | no fix |