Name | CVE-2020-8619 |
Description | In ISC BIND9 versions BIND 9.11.14 -> 9.11.19, BIND 9.14.9 -> 9.14.12, BIND 9.16.0 -> 9.16.3, BIND Supported Preview Edition 9.11.14-S1 -> 9.11.19-S1: Unless a nameserver is providing authoritative service for one or more zones and at least one zone contains an empty non-terminal entry containing an asterisk ("*") character, this defect cannot be encountered. A would-be attacker who is allowed to change zone content could theoretically introduce such a record in order to exploit this condition to cause denial of service, though we consider the use of this vector unlikely because any such attack would require a significant privilege level and be easily traceable. |
Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
References | DSA-4752-1 |
The table below lists information on source packages.
Source Package | Release | Version | Status |
---|---|---|---|
bind9 (PTS) | jessie, jessie (lts) | 1:9.9.5.dfsg-9+deb8u31 | fixed |
stretch (security) | 1:9.10.3.dfsg.P4-12.3+deb9u12 | fixed | |
stretch (lts), stretch | 1:9.10.3.dfsg.P4-12.3+deb9u17 | fixed | |
buster, buster (lts) | 1:9.11.5.P4+dfsg-5.1+deb10u13 | fixed | |
buster (security) | 1:9.11.5.P4+dfsg-5.1+deb10u11 | fixed | |
bullseye | 1:9.16.50-1~deb11u2 | fixed | |
bullseye (security) | 1:9.16.50-1~deb11u1 | fixed | |
bookworm (security), bookworm | 1:9.18.28-1~deb12u2 | fixed | |
trixie | 1:9.20.4-2 | fixed | |
sid | 1:9.20.4-3 | fixed |
The information below is based on the following data on fixed versions.
Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
---|---|---|---|---|---|---|
bind9 | source | wheezy | (not affected) | |||
bind9 | source | jessie | (not affected) | |||
bind9 | source | stretch | (not affected) | |||
bind9 | source | buster | 1:9.11.5.P4+dfsg-5.1+deb10u2 | DSA-4752-1 | ||
bind9 | source | (unstable) | 1:9.16.4-1 |
[stretch] - bind9 <not-affected> (Vulnerable code introduced later)
[jessie] - bind9 <not-affected> (Vulnerable code introduced later)
https://kb.isc.org/docs/cve-2020-8619
https://gitlab.isc.org/isc-projects/bind9/-/issues/1718
https://gitlab.isc.org/isc-projects/bind9/commit/0854f631149848b64cc193979d0b0edf39159330 (v9_17_3)
https://gitlab.isc.org/isc-projects/bind9/commit/90a7416d1599df7aa1cdfac33b2da9352eeec4b0 (v9_11_21)
[wheezy] - bind9 <not-affected> (Vulnerable code introduced later)