CVE-2024-34750

NameCVE-2024-34750
DescriptionImproper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. This led to a miscounting of active HTTP/2 streams which in turn led to the use of an incorrect infinite timeout which allowed connections to remain open which should have been closed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M20, from 10.1.0-M1 through 10.1.24, from 9.0.0-M1 through 9.0.89. Users are recommended to upgrade to version 11.0.0-M21, 10.1.25 or 9.0.90, which fixes the issue.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
tomcat10 (PTS)bookworm (security), bookworm10.1.6-1+deb12u2vulnerable
sid, trixie10.1.31-1fixed
tomcat7 (PTS)jessie, jessie (lts)7.0.56-3+really7.0.109-1+deb8u6fixed
stretch7.0.75-1fixed
tomcat8 (PTS)jessie, jessie (lts)8.0.14-1+deb8u28fixed
stretch (security)8.5.54-0+deb9u8vulnerable
stretch (lts), stretch8.5.54-0+deb9u15vulnerable
tomcat9 (PTS)buster (security), buster, buster (lts)9.0.31-1~deb10u12vulnerable
bullseye (security), bullseye9.0.43-2~deb11u10vulnerable
bookworm9.0.70-2fixed
sid, trixie9.0.95-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
tomcat10source(unstable)10.1.25-1
tomcat7source(unstable)(not affected)
tomcat8sourcejessie(not affected)
tomcat8source(unstable)(unfixed)
tomcat9source(unstable)9.0.70-2

Notes

[bookworm] - tomcat10 <postponed> (Minor issue, fixed along in next DSA)
[bullseye] - tomcat9 <postponed> (Minor issue, fixed along in next DSA)
https://lists.apache.org/thread/4kqf0bc9gxymjc2x7v3p7dvplnl77y8l
https://github.com/apache/tomcat/commit/2afae300c9ac9c0e516e2e9de580847d925365c3 (10.1.25)
https://github.com/apache/tomcat/commit/9fec9a82887853402833a80b584e3762c7423f5f (9.0.90)
Starting with 9.0.70-2 src:tomcat9 no longer ships the server stack, using that as the fixed version
- tomcat7 <not-affected> (HTTP/2 support not implemented)
[stretch] - tomcat8 <postponed> (Minor issue, DoS)
[jessie] - tomcat8 <not-affected> (HTTP/2 support was introduced later)

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