CVE-2020-8623

Name	CVE-2020-8623
Description	In BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker that can reach a vulnerable system with a specially crafted query packet can trigger a crash. To be vulnerable, the system must: * be running BIND that was built with "--enable-native-pkcs11" * be signing one or more zones with an RSA key * be able to receive queries from a possible attacker
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-2355-1, DSA-4752-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
bind9 (PTS)	buster	1:9.11.5.P4+dfsg-5.1+deb10u7	fixed
	buster (security)	1:9.11.5.P4+dfsg-5.1+deb10u8	fixed
	bullseye (security), bullseye	1:9.16.37-1~deb11u1	fixed
	bookworm	1:9.18.12-1	fixed
	sid	1:9.18.13-1	fixed

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

Package	Type	Release	Fixed Version	Origin
bind9	source	stretch	1:9.10.3.dfsg.P4-12.3+deb9u7	DLA-2355-1
bind9	source	buster	1:9.11.5.P4+dfsg-5.1+deb10u2	DSA-4752-1
bind9	source	(unstable)	1:9.16.6-1

Notes

https://kb.isc.org/docs/cve-2020-8623
https://gitlab.isc.org/isc-projects/bind9/commit/ac3862a5da95bb07b6cf748b0958175687a9de1d (v9_16_6)
https://gitlab.isc.org/isc-projects/bind9/commit/8d807cc21655eaa6e6a08afafeec3682c0f3f2ab (v9_11_22)