| Name | CVE-2018-16844 |
| Description | nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive CPU usage. This issue affects nginx compiled with the ngx_http_v2_module (not compiled by default) if the 'http2' option of the 'listen' directive is used in a configuration file. |
| 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-4335-1 |
| Debian Bugs | 913090 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| nginx (PTS) | jessie, jessie (lts) | 1.6.2-5+deb8u10 | fixed |
| stretch (security) | 1.10.3-1+deb9u7 | fixed |
| stretch (lts), stretch | 1.10.3-1+deb9u8 | fixed |
| buster (security), buster, buster (lts) | 1.14.2-2+deb10u5 | fixed |
| bullseye (security), bullseye | 1.18.0-6.1+deb11u3 | fixed |
| bookworm | 1.22.1-9 | fixed |
| sid, trixie | 1.26.0-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| nginx | source | jessie | (not affected) | | | |
| nginx | source | stretch | 1.10.3-1+deb9u2 | | DSA-4335-1 | |
| nginx | source | (unstable) | 1.14.1-1 | | | 913090 |
Notes
[jessie] - nginx <not-affected> (HTTP 2.0 support added later)
http://mailman.nginx.org/pipermail/nginx-announce/2018/000220.html
http://hg.nginx.org/nginx/rev/9200b41db765
Fixed in 1.15.6, 1.14.1.