CVE-2020-13934

NameCVE-2020-13934
DescriptionAn h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2286-1, DSA-4727-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
tomcat8 (PTS)stretch8.5.54-0+deb9u1vulnerable
stretch (security)8.5.54-0+deb9u3fixed
tomcat9 (PTS)buster, buster (security)9.0.31-1~deb10u2fixed
bullseye, sid9.0.37-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
tomcat8sourcestretch8.5.54-0+deb9u3DLA-2286-1
tomcat8source(unstable)(unfixed)
tomcat9sourcebuster9.0.31-1~deb10u2DSA-4727-1
tomcat9source(unstable)9.0.37-1

Notes

https://www.openwall.com/lists/oss-security/2020/07/14/4
https://github.com/apache/tomcat/commit/923d834500802a61779318911d7898bd85fc950e (8.5.57)
https://github.com/apache/tomcat/commit/172977f04a5215128f1e278a688983dcd230f399 (9.0.37)

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