| 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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2355-1, 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 | jessie | (not affected) | |||
| 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 |
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)