CVE-2020-10772

Name	CVE-2020-10772
Description	An incomplete fix for CVE-2020-12662 was shipped for Unbound in Red Hat Enterprise Linux 7, as part of erratum RHSA-2020:2414. Vulnerable versions of Unbound could still amplify an incoming query into a large number of queries directed to a target, even with a lower amplification ratio compared to versions of Unbound that shipped before the mentioned erratum. This issue is about the incomplete fix for CVE-2020-12662, and it does not affect upstream versions of Unbound.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
unbound (PTS)	jessie, jessie (lts)	1.4.22-3+deb8u4	fixed
	stretch	1.6.0-3+deb9u2	fixed
	buster, buster (lts)	1.9.0-2+deb10u5	fixed
	buster (security)	1.9.0-2+deb10u4	fixed
	bullseye	1.13.1-1+deb11u2	fixed
	bullseye (security)	1.13.1-1+deb11u4	fixed
	bookworm (security), bookworm	1.17.1-2+deb12u2	fixed
	sid, trixie	1.22.0-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
unbound	source	(unstable)	(not affected)

- unbound <not-affected> (Red Hat specific regression in backport)