CVE-2020-8623

NameCVE-2020-8623
DescriptionIn 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
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2355-1, DSA-4752-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
bind9 (PTS)jessie, jessie (lts)1:9.9.5.dfsg-9+deb8u30fixed
stretch (security)1:9.10.3.dfsg.P4-12.3+deb9u12fixed
stretch (lts), stretch1:9.10.3.dfsg.P4-12.3+deb9u15fixed
buster1:9.11.5.P4+dfsg-5.1+deb10u7fixed
buster (security)1:9.11.5.P4+dfsg-5.1+deb10u10fixed
bullseye1:9.16.44-1~deb11u1fixed
bullseye (security)1:9.16.48-1fixed
bookworm1:9.18.19-1~deb12u1fixed
bookworm (security)1:9.18.24-1fixed
sid, trixie1:9.19.21-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
bind9sourcejessie(not affected)
bind9sourcestretch1:9.10.3.dfsg.P4-12.3+deb9u7DLA-2355-1
bind9sourcebuster1:9.11.5.P4+dfsg-5.1+deb10u2DSA-4752-1
bind9source(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)
[jessie] - bind9 <not-affected> (Vulnerable code introduced later)

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