CVE-2020-22284

NameCVE-2020-22284
DescriptionA 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs991646

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
lwip (PTS)buster2.0.3-3+deb10u1fixed
buster (security)2.0.3-3+deb10u2fixed
bullseye2.1.2+dfsg1-8+deb11u1fixed
bookworm2.1.3+dfsg1-2fixed
sid2.2.0+dfsg1-6.1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
lwipsourcebuster(not affected)
lwipsourcebullseye2.1.2+dfsg1-8+deb11u1
lwipsource(unstable)2.1.3+dfsg1-1991646

Notes

[buster] - lwip <not-affected> (vulnerable code is not present)
https://savannah.nongnu.org/bugs/index.php?58554
https://git.savannah.nongnu.org/cgit/lwip.git/commit/?id=8363c24e45a32728e385cfc2c3c36d88a8a9e70b (master)
https://git.savannah.nongnu.org/cgit/lwip.git/commit/?id=379d55044e9181533f1fd4d0e0cf89bc01cb9b8b (STABLE-2_1_3_RC1)
Vulnerable feature introduced with https://git.savannah.nongnu.org/cgit/lwip.git/commit/?id=43a55003da622851b1c1677c8e7cb75e9430300f (first contained in STABLE-2_1_0_RC1)

Search for package or bug name: Reporting problems