CVE-2023-34981
HIGH7.5EPSS 0.27%Apache Tomcat: AJP response header mix-up
Published: 6/21/2023Modified: 4/28/2026
Description
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.
Affected packages (4)
- Bitnami/tomcat>= 8.5.88, < 8.5.89, >= 9.0.74, < 9.0.75, >= 10.1.8, < 10.1.9
- Debian/tomcat10from 0, < 10.1.10-1
- Maven/org.apache.tomcat.embed:tomcat-embed-core>= 11.0.0-M5, < 11.0.0-M6
- Maven/org.apache.tomcat:tomcat-coyote>= 8.5.88, < 8.5.89
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
References (16)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-34981
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2023-34981
- PATCHhttps://github.com/apache/tomcat
- WEBhttps://bz.apache.org/bugzilla/show_bug.cgi?id=66512
- WEBhttps://bz.apache.org/bugzilla/show_bug.cgi?id=66591
- WEBhttps://github.com/apache/tomcat/commit/2214c8030522aa9b2a367dfa5d9acff1a03666ae
- WEBhttps://github.com/apache/tomcat/commit/2f0ca2378415f4cf0748f4bc8fa955f41f803fa5
- WEBhttps://github.com/apache/tomcat/commit/739c7381aed22b7636351caf885ddc519ab6b442
- WEBhttps://github.com/apache/tomcat/commit/f0742f47b98aca943097f7f88e0d1163f57527e3
- WEBhttps://lists.apache.org/thread/j1ksjh9m9gx1q60rtk1sbzmxhvj5h5qz
- WEBhttps://security.netapp.com/advisory/ntap-20230714-0003
- WEBhttps://security.netapp.com/advisory/ntap-20230714-0003/
- WEBhttps://tomcat.apache.org/security-10.html
- WEBhttps://tomcat.apache.org/security-11.html
- WEBhttps://tomcat.apache.org/security-8.html
- WEBhttps://tomcat.apache.org/security-9.html