CVE-2018-17189

NameCVE-2018-17189
DescriptionIn Apache HTTP server versions 2.4.37 and prior, by sending request bodies in a slow loris way to plain resources, the h2 stream for that request unnecessarily occupied a server thread cleaning up that incoming data. This affects only HTTP/2 (mod_http2) connections.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-4422-1
Debian Bugs920302

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
apache2 (PTS)buster2.4.38-3+deb10u8fixed
buster (security)2.4.38-3+deb10u10fixed
bullseye2.4.56-1~deb11u2fixed
bullseye (security)2.4.56-1~deb11u1fixed
bookworm2.4.57-2fixed
sid, trixie2.4.58-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
apache2sourcejessie(not affected)
apache2sourcestretch2.4.25-3+deb9u7DSA-4422-1
apache2source(unstable)2.4.38-1low920302

Notes

[jessie] - apache2 <not-affected> (Vulnerable code not present)
HTTP/2 support introduced in 2.4.17
https://www.openwall.com/lists/oss-security/2019/01/22/2
https://svn.apache.org/r1851329

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