CVE-2019-9518

NameCVE-2019-9518
DescriptionSome HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU.
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)
ReferencesDSA-4520-1
NVD severityhigh (attack range: remote)
Debian Bugs935314

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
trafficserver (PTS)stretch (security), stretch7.0.0-6+deb9u2vulnerable
buster8.0.2+ds-1vulnerable
buster (security)8.0.2+ds-1+deb10u1fixed
bullseye, sid8.0.5+ds-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
trafficserversource(unstable)8.0.5+ds-1high935314
trafficserversourcebuster8.0.2+ds-1+deb10u1highDSA-4520-1
trafficserversourcestretch(unfixed)end-of-life

Notes

[stretch] - trafficserver <end-of-life> (see DSA 4520)
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md
https://github.com/apache/trafficserver/pull/5850
https://github.com/apache/trafficserver/blob/8.0.x/CHANGELOG-8.0.5

Search for package or bug name: Reporting problems