CVE-2023-42795: Apache Tomcat: Failure during request clean-up leads to sensitive data leaking to subsequent requests

Published Oct 10, 2023
·
Updated

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.

Other sources

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.

— NVD

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.

— NVD

Affected Software

83 affected componentsFixes available
debian/tomcat10
10.1.6-1+deb12u110.1.16-1
debian/tomcat9<=9.0.31-1~deb10u6, <=9.0.43-2~deb11u6
9.0.31-1~deb10u109.0.43-2~deb11u99.0.70-2
maven/org.apache.tomcat:tomcat-coyote>=10.1.0-M1<10.1.14
10.1.14
maven/org.apache.tomcat:tomcat-coyote>=11.0.0-M1<11.0.0-M12
11.0.0-M12
maven/org.apache.tomcat.embed:tomcat-embed-core>=8.5.0<8.5.94
8.5.94
maven/org.apache.tomcat.embed:tomcat-embed-core>=9.0.0-M1<9.0.81
9.0.81
maven/org.apache.tomcat.embed:tomcat-embed-core>=10.1.0-M1<10.1.14
10.1.14
maven/org.apache.tomcat.embed:tomcat-embed-core>=11.0.0-M1<11.0.0-M12
11.0.0-M12
maven/org.apache.tomcat:tomcat>=8.5.0<8.5.94
8.5.94
maven/org.apache.tomcat:tomcat>=9.0.0-M1<9.0.81
9.0.81
Apache Tomcat>=8.5.0<8.5.94
Apache Tomcat>=9.0.1<9.0.81
Apache Tomcat>=10.1.1<10.1.14
Apache Tomcat=9.0.0-milestone1
Apache Tomcat=9.0.0-milestone10
Apache Tomcat=9.0.0-milestone11
Apache Tomcat=9.0.0-milestone12
Apache Tomcat=9.0.0-milestone13
Apache Tomcat=9.0.0-milestone14
Apache Tomcat=9.0.0-milestone15
Apache Tomcat=9.0.0-milestone16
Apache Tomcat=9.0.0-milestone17
Apache Tomcat=9.0.0-milestone18
Apache Tomcat=9.0.0-milestone19
Apache Tomcat=9.0.0-milestone2
Apache Tomcat=9.0.0-milestone20
Apache Tomcat=9.0.0-milestone21
Apache Tomcat=9.0.0-milestone22
Apache Tomcat=9.0.0-milestone23
Apache Tomcat=9.0.0-milestone24
Apache Tomcat=9.0.0-milestone25
Apache Tomcat=9.0.0-milestone26
Apache Tomcat=9.0.0-milestone27
Apache Tomcat=9.0.0-milestone3
Apache Tomcat=9.0.0-milestone4
Apache Tomcat=9.0.0-milestone5
Apache Tomcat=9.0.0-milestone6
Apache Tomcat=9.0.0-milestone7
Apache Tomcat=9.0.0-milestone8
Apache Tomcat=9.0.0-milestone9
Apache Tomcat=10.1.0-milestone1
Apache Tomcat=10.1.0-milestone10
Apache Tomcat=10.1.0-milestone11
Apache Tomcat=10.1.0-milestone12
Apache Tomcat=10.1.0-milestone13
Apache Tomcat=10.1.0-milestone14
Apache Tomcat=10.1.0-milestone15
Apache Tomcat=10.1.0-milestone16
Apache Tomcat=10.1.0-milestone17
Apache Tomcat=10.1.0-milestone18
Apache Tomcat=10.1.0-milestone19
Apache Tomcat=10.1.0-milestone2
Apache Tomcat=10.1.0-milestone20
Apache Tomcat=10.1.0-milestone3
Apache Tomcat=10.1.0-milestone4
Apache Tomcat=10.1.0-milestone5
Apache Tomcat=10.1.0-milestone6
Apache Tomcat=10.1.0-milestone7
Apache Tomcat=10.1.0-milestone8
Apache Tomcat=10.1.0-milestone9
Apache Tomcat=11.0.0-milestone1
Apache Tomcat=11.0.0-milestone10
Apache Tomcat=11.0.0-milestone11
Apache Tomcat=11.0.0-milestone2
Apache Tomcat=11.0.0-milestone3
Apache Tomcat=11.0.0-milestone4
Apache Tomcat=11.0.0-milestone5
Apache Tomcat=11.0.0-milestone6
Apache Tomcat=11.0.0-milestone7
Apache Tomcat=11.0.0-milestone8
Apache Tomcat=11.0.0-milestone9
Debian Debian Linux=10.0
Debian Debian Linux=11.0
Debian Debian Linux=12.0
F5 BIG-IP=17.5.0, >=17.1.0<=17.1.2
17.5.117.1.3
F5 BIG-IP>=16.1.0<=16.1.6
F5 BIG-IP>=15.1.0<=15.1.10
F5 Traffix SDC=5.2.0, =5.1.0
redhat/tomcat<11.0.0
11.0.0
redhat/tomcat<10.1.14
10.1.14
redhat/tomcat<9.0.81
9.0.81
redhat/tomcat<8.5.94
8.5.94
IBM API Connect V12 OnPrem<=All

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/tomcat10 to a version that resolves this vulnerability.

    Fixed in 10.1.6-1+deb12u1Fixed in 10.1.16-1
  2. Upgrade

    Upgrade debian/tomcat9 to a version that resolves this vulnerability.

    Fixed in 9.0.31-1~deb10u10Fixed in 9.0.43-2~deb11u9Fixed in 9.0.70-2
  3. Upgrade

    Upgrade maven/org.apache.tomcat:tomcat-coyote to a version that resolves this vulnerability.

    Fixed in 10.1.14
  4. Upgrade

    Upgrade maven/org.apache.tomcat:tomcat-coyote to a version that resolves this vulnerability.

    Fixed in 11.0.0-M12
  5. Upgrade

    Upgrade maven/org.apache.tomcat.embed:tomcat-embed-core to a version that resolves this vulnerability.

    Fixed in 8.5.94
  6. Upgrade

    Upgrade maven/org.apache.tomcat.embed:tomcat-embed-core to a version that resolves this vulnerability.

    Fixed in 9.0.81
  7. Upgrade

    Upgrade maven/org.apache.tomcat.embed:tomcat-embed-core to a version that resolves this vulnerability.

    Fixed in 10.1.14
  8. Upgrade

    Upgrade maven/org.apache.tomcat.embed:tomcat-embed-core to a version that resolves this vulnerability.

    Fixed in 11.0.0-M12
  9. Upgrade

    Upgrade maven/org.apache.tomcat:tomcat to a version that resolves this vulnerability.

    Fixed in 8.5.94
  10. Upgrade

    Upgrade maven/org.apache.tomcat:tomcat to a version that resolves this vulnerability.

    Fixed in 9.0.81
  11. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 17.5.117.1.3
  12. Upgrade

    Upgrade redhat/tomcat to a version that resolves this vulnerability.

    Fixed in 11.0.0
  13. Upgrade

    Upgrade redhat/tomcat to a version that resolves this vulnerability.

    Fixed in 10.1.14
  14. Upgrade

    Upgrade redhat/tomcat to a version that resolves this vulnerability.

    Fixed in 9.0.81
  15. Upgrade

    Upgrade redhat/tomcat to a version that resolves this vulnerability.

    Fixed in 8.5.94
  16. Upgrade

    Upgrade Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 11.0.0-M12 onwards
  17. Upgrade

    Upgrade Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 10.1.14 onwards
  18. Upgrade

    Upgrade Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 9.0.81 onwards
  19. Upgrade

    Upgrade Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 8.5.94 onwards

Event History

Oct 10, 2023
CVE Published
via MITRE·05:42 PM
Data Sourced
via MITRE·05:42 PM
DescriptionWeakness
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software
Advisory Published
via GitHub·06:31 PM
Oct 12, 2023
Data Sourced
via Red Hat·09:27 PM
DescriptionSeverityAffected Software
Jan 17, 2024
Advisory Published
via F5·03:50 AM
Data Sourced
via F5·03:50 AM
DescriptionSeverityWeaknessAffected Software
Jul 7, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2023-42795?

CVE-2023-42795 is an incomplete cleanup vulnerability in Apache Tomcat that could lead to sensitive data leakage to subsequent requests.

2

Which versions of Apache Tomcat are affected by CVE-2023-42795?

Apache Tomcat versions 11.0.0-M1 through 11.0.0-M11, 10.1.0-M1 through 10.1.13, 9.0.0-M1 through 9.0.80, and 8.5.0 through 8.5.93 are affected by CVE-2023-42795.

3

How can I fix CVE-2023-42795?

To fix CVE-2023-42795, you should update Apache Tomcat to version 8.5.94, 9.0.81, 10.1.14, or 11.0.0-M12.

4

What is the severity of CVE-2023-42795?

The severity of CVE-2023-42795 is not provided.

5

Where can I find more information about CVE-2023-42795?

You can find more information about CVE-2023-42795 in the following references: [1] [2] [3].

Company

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