CVE-2023-42795
Apache Tomcat Incomplete Cleanup vulnerability
Description
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. Older, EOL versions may also be affected. 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.
How to fix CVE-2023-42795
To remediate CVE-2023-42795, upgrade the affected package to a fixed version below.
- —upgrade to 8.5.94 or later
- —upgrade to 10.1.6-1+deb12u1 or later
- —upgrade to 9.0.43-2~deb11u7 or later
- —upgrade to 11.0.0-M12 or later
- —upgrade to 9.0.81 or later
- —upgrade to 11.0.0-M12 or later
- —upgrade to 11.0.0-M12 or later
- —upgrade to 11.0.0-M12 or later
Is CVE-2023-42795 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (8)
- >= 8.5.0, < 8.5.94, >= 9.0.1, < 9.0.81, >= 10.1.1, < 10.1.14
- from 0, < 10.1.6-1+deb12u1
- from 0, < 9.0.43-2~deb11u7
- >= 11.0.0-M1, < 11.0.0-M12
- >= 9.0.0-M1, < 9.0.81
- >= 11.0.0-M1, < 11.0.0-M12
- >= 11.0.0-M1, < 11.0.0-M12
- >= 11.0.0-M1, < 11.0.0-M12
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |