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GHSA-mppv-79ch-vw6q

Apache Tomcat vulnerable to information leak

Source: GitHub Advisory Database (reviewed) High CVE-2023-34981

Packages

EcosystemPackageAffectedFixed in
Maven org.apache.tomcat.embed:tomcat-embed-core >= 11.0.0-M5, < 11.0.0-M6 11.0.0-M6
Maven org.apache.tomcat.embed:tomcat-embed-core >= 10.1.8, < 10.1.9 10.1.9
Maven org.apache.tomcat.embed:tomcat-embed-core >= 9.0.74, < 9.0.75 9.0.75
Maven org.apache.tomcat:tomcat-coyote >= 8.5.88, < 8.5.89 8.5.89

Details

As written in the advisory (Markdown source, shown as plain text).

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 message would 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.

References

External links from the advisory. They lead to third-party sites.