CVE-2021-21409

NameCVE-2021-21409
DescriptionNetty is an open-source, asynchronous event-driven network application ...
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-4885-1
Debian Bugs986217

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
netty (PTS)jessie, jessie (lts)1:3.2.6.Final-2+deb8u2fixed
stretch1:4.1.7-2+deb9u1vulnerable
stretch (security)1:4.1.7-2+deb9u3vulnerable
buster, buster (security)1:4.1.33-1+deb10u2fixed
sid, bookworm, bullseye1:4.1.48-4fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
nettysourcejessie(not affected)
nettysourcebuster1:4.1.33-1+deb10u2DSA-4885-1
nettysource(unstable)1:4.1.48-4986217

Notes

[stretch] - netty <ignored> (Minor issue, fix requires major changes of HTTP2 module)
Fixed by: https://github.com/netty/netty/commit/b0fa4d5aab4215f3c22ce6123dd8dd5f38dc0432
https://github.com/netty/netty/security/advisories/GHSA-f256-j965-7f32
Is a followup to: https://github.com/netty/netty/security/advisories/GHSA-wm47-8v5p-wjpj
[jessie] - netty <not-affected> (http2 support added later)

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