| Name | CVE-2019-9518 |
| Description | Some 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-4520-1 |
| Debian Bugs | 935314 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| trafficserver (PTS) | buster (security), buster, buster (lts) | 8.1.7-0+deb10u4 | fixed |
| bullseye | 8.1.10+ds-1~deb11u1 | fixed | |
| bullseye (security) | 8.1.11+ds-0+deb11u1 | fixed | |
| bookworm | 9.2.4+ds-0+deb12u1 | fixed | |
| bookworm (security) | 9.2.5+ds-0+deb12u1 | fixed | |
| sid | 9.2.5+ds-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| trafficserver | source | wheezy | (unfixed) | end-of-life | ||
| trafficserver | source | buster | 8.0.2+ds-1+deb10u1 | DSA-4520-1 | ||
| trafficserver | source | (unstable) | 8.0.5+ds-1 | 935314 |
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