CVE-2023-28709: Apache Tomcat: Fix for CVE-2023-24998 is incomplete

Published May 22, 2023
·
Updated

The fix for CVE-2023-24998 was incomplete for Apache Tomcat 11.0.0-M2 to 11.0.0-M4, 10.1.5 to 10.1.7, 9.0.71 to 9.0.73 and 8.5.85 to 8.5.87. If non-default HTTP connector settings were used such that the maxParameterCount could be reached using query string parameters and a request was submitted that supplied exactly maxParameterCount parameters in the query string, the limit for uploaded request parts could be bypassed with the potential for a denial of service to occur.

Other sources

The fix for CVE-2023-24998 was incomplete. If non-default HTTP connector settings were used such that the maxParameterCount could be reached using query string parameters and a request was submitted that supplied exactly maxParameterCount parameters in the query string, the limit for uploaded request parts could be bypassed with the potential for a denial of service to occur.

— GitHub

Affected Software

24 affected componentsFixes available
debian/tomcat10
10.1.6-1+deb12u110.1.16-1
debian/tomcat9
9.0.31-1~deb10u69.0.31-1~deb10u109.0.43-2~deb11u69.0.43-2~deb11u99.0.70-2
maven/org.apache.tomcat:tomcat-coyote>=8.5.85<8.5.88
8.5.88
maven/org.apache.tomcat.embed:tomcat-embed-core>=9.0.71<9.0.74
9.0.74
maven/org.apache.tomcat.embed:tomcat-embed-core>=10.1.5<10.1.8
10.1.8
maven/org.apache.tomcat.embed:tomcat-embed-core>=11.0.0-M2<11.0.0-M5
11.0.0-M5
Apache Tomcat>=8.5.85<=8.5.87
Apache Tomcat>=9.0.71<=9.0.73
Apache Tomcat>=10.1.5<=10.1.7
Apache Tomcat=11.0.0-milestone2
Apache Tomcat=11.0.0-milestone3
Apache Tomcat=11.0.0-milestone4
Debian Debian Linux=12.0
NetApp 7-Mode Transition Tool
redhat/Apache Tomcat<11.0.0
11.0.0
redhat/Apache Tomcat<10.1.8
10.1.8
redhat/Apache Tomcat<9.0.74
9.0.74
redhat/Apache Tomcat<8.5.88
8.5.88
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 BIG-IP>=14.1.0<=14.1.5
F5 BIG-IP>=13.1.0<=13.1.5
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~deb10u6Fixed in 9.0.31-1~deb10u10Fixed in 9.0.43-2~deb11u6Fixed 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 8.5.88
  4. Upgrade

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

    Fixed in 9.0.74
  5. Upgrade

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

    Fixed in 10.1.8
  6. Upgrade

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

    Fixed in 11.0.0-M5
  7. Upgrade

    Upgrade redhat/Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 11.0.0
  8. Upgrade

    Upgrade redhat/Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 10.1.8
  9. Upgrade

    Upgrade redhat/Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 9.0.74
  10. Upgrade

    Upgrade redhat/Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 8.5.88
  11. Upgrade

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

    Fixed in 17.5.117.1.3

Event History

May 22, 2023
CVE Published
via MITRE·10:08 AM
Data Sourced
via MITRE·10:08 AM
DescriptionWeakness
May 26, 2023
Data Sourced
via Red Hat·03:18 PM
DescriptionSeverityAffected Software
Jun 28, 2023
Advisory Published
via F5·10:23 PM
Data Sourced
via F5·10:23 PM
DescriptionSeverityWeaknessAffected Software
Jul 6, 2023
Advisory Published
via GitHub·09:14 PM
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-2023-28709?

CVE-2023-28709 is a vulnerability in Apache Tomcat that allows for a denial of service attack.

2

Which versions of Apache Tomcat are affected by CVE-2023-28709?

Apache Tomcat 11.0.0-M2 to 11.0.0-M4, 10.1.5 to 10.1.7, 9.0.71 to 9.0.73, and 8.5.85 to 8.5.87 are affected by CVE-2023-28709.

3

How severe is CVE-2023-28709?

CVE-2023-28709 has a severity rating of 7.5 (high).

4

Is there a fix available for CVE-2023-28709?

Yes, the fix for CVE-2023-28709 is available in Apache Tomcat versions 8.5.88, 9.0.74, 10.1.8, and 11.0.0-M5.

5

Where can I find more information about CVE-2023-28709?

You can find more information about CVE-2023-28709 on the Red Hat Security Advisory page and the Apache Tomcat mailing list.

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