CVE-2022-24823

Name	CVE-2022-24823
Description	Netty is an open-source, asynchronous event-driven network application framework. The package `io.netty:netty-codec-http` prior to version 4.1.77.Final contains an insufficient fix for CVE-2021-21290. When Netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. This only impacts applications running on Java version 6 and lower. Additionally, this vulnerability impacts code running on Unix-like systems, and very old versions of Mac OSX and Windows as they all share the system temporary directory between all users. Version 4.1.77.Final contains a patch for this vulnerability. As a workaround, specify one's own `java.io.tmpdir` when starting the JVM or use DefaultHttpDataFactory.setBaseDir(...) to set the directory to something that is only readable by the current user.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1010693

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
netty (PTS)	buster	1:4.1.33-1+deb10u2	vulnerable
	buster (security)	1:4.1.33-1+deb10u4	vulnerable
	bullseye (security), bullseye	1:4.1.48-4+deb11u2	vulnerable
	bookworm, bookworm (security)	1:4.1.48-7+deb12u1	vulnerable
	trixie, sid	1:4.1.48-9	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
netty	source	(unstable)	(unfixed)	unimportant		1010693

Notes

https://github.com/netty/netty/security/advisories/GHSA-269q-hmxg-m83q
https://github.com/netty/netty/commit/185f8b2756a36aaa4f973f1a2a025e7d981823f1
Issue exists because of isufficient fix for CVE-2021-21290
Impacts only applications running on Java version 6 and lower.