CVE-2023-42795: Incomplete Cleanup

October 10, 2023 (updated November 4, 2023)

Incomplete Cleanup vulnerability in Apache Tomcat.When recycling various internal objects in Apache Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.80 and from 8.5.0 through 8.5.93, an error could cause Tomcat to skip some parts of the recycling process leading to information leaking from the current request/response to the next.

Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fixes the issue.

References

www.openwall.com/lists/oss-security/2023/10/10/9
lists.apache.org/thread/065jfyo583490r9j2v73nhpyxdob56lw
lists.debian.org/debian-lts-announce/2023/10/msg00020.html
nvd.nist.gov/vuln/detail/CVE-2023-42795
www.debian.org/security/2023/dsa-5521
www.debian.org/security/2023/dsa-5522

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