CVE-2020-22284

Name	CVE-2020-22284
Description	A buffer overflow vulnerability in the zepif_linkoutput() function of Free Software Foundation lwIP git head version and version 2.1.2 allows attackers to access sensitive information via a crafted 6LoWPAN packet.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severity	medium
Debian Bugs	991646

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
lwip (PTS)	buster	2.0.3-3+deb10u1	vulnerable
	bullseye	2.1.2+dfsg1-8	vulnerable
	bookworm, sid	2.1.3+dfsg1-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
lwip	source	(unstable)	(unfixed)			991646

Notes

[bullseye] - lwip <no-dsa> (Minor issue)
[buster] - lwip <no-dsa> (Minor issue)
https://savannah.nongnu.org/bugs/index.php?58554
https://git.savannah.nongnu.org/cgit/lwip.git/commit/?id=8363c24e45a32728e385cfc2c3c36d88a8a9e70b