| Name | CVE-2020-7238 |
| Description | Netty 4.1.43.Final allows HTTP Request Smuggling because it mishandles Transfer-Encoding whitespace (such as a [space]Transfer-Encoding:chunked line) and a later Content-Length header. This issue exists because of an incomplete fix for CVE-2019-16869. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2109-1, DLA-2110-1, DLA-2364-1, DSA-4885-1, ELA-214-1 |
| Debian Bugs | 950967 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| netty (PTS) | jessie, jessie (lts) | 1:3.2.6.Final-2+deb8u2 | fixed |
| stretch (security) | 1:4.1.7-2+deb9u3 | fixed | |
| stretch (lts), stretch | 1:4.1.7-2+deb9u5 | fixed | |
| buster (security), buster, buster (lts) | 1:4.1.33-1+deb10u5 | fixed | |
| bullseye (security), bullseye | 1:4.1.48-4+deb11u2 | fixed | |
| bookworm (security), bookworm | 1:4.1.48-7+deb12u1 | fixed | |
| sid, trixie | 1:4.1.48-10 | fixed | |
| netty-3.9 (PTS) | jessie, jessie (lts) | 3.9.0.Final-1+deb8u2 | fixed |
| stretch (security) | 3.9.9.Final-1+deb9u1 | fixed | |
| stretch (lts), stretch | 3.9.9.Final-1+deb9u2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| netty | source | wheezy | 3.2.6.Final-2+deb7u2 | ELA-214-1 | ||
| netty | source | jessie | 1:3.2.6.Final-2+deb8u2 | DLA-2109-1 | ||
| netty | source | stretch | 1:4.1.7-2+deb9u2 | DLA-2364-1 | ||
| netty | source | buster | 1:4.1.33-1+deb10u2 | DSA-4885-1 | ||
| netty | source | (unstable) | 1:4.1.45-1 | 950967 | ||
| netty-3.9 | source | jessie | 3.9.0.Final-1+deb8u1 | DLA-2110-1 | ||
| netty-3.9 | source | stretch | (not affected) | |||
| netty-3.9 | source | (unstable) | (unfixed) |
[stretch] - netty-3.9 <not-affected> (Incomplete fix for CVE-2019-16869 was not applied)
https://bugzilla.redhat.com/show_bug.cgi?id=1796225
https://github.com/jdordonezn/CVE-2020-72381/issues/1
Issue exists because of incomplete fix for CVE-2019-16869.
https://github.com/netty/netty/issues/9861#issuecomment-582307539 (same fix as CVE-2019-20445)