CVE-2023-2911
bind9-host: If the `recursive-clients` quota is reached on a BIND 9 resolver configuredwith both `stale-answer-enable yes;` and `...
CVE-2023-2911 is fixed in 37 products on 1 platform, first by bind9 1:9.16.1-0ubuntu2.15, released June 20, 2023. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0243
84th percentile
If the `recursive-clients` quota is reached on a BIND 9 resolver configuredwith both `stale-answer-enable yes;` and `stale-answer-client-timeout 0;`,a sequence of serve-stale-related lookups could cause `named` to loop andterminate unexpectedly due to a stack overflow.This issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bind · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-chroot · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-debuginfo · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-debugsource · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-devel · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-dlz-filesystem · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-dlz-filesystem-debuginfo · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-dlz-ldap · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-dlz-ldap-debuginfo · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-dlz-mysql · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-dlz-mysql-debuginfo · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-dlz-sqlite3 · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-dlz-sqlite3-debuginfo · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-dnssec-doc · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-dnssec-utils · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-dnssec-utils-debuginfo · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-doc · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-libs · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-libs-debuginfo · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-license · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-pkcs11 · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-pkcs11-debuginfo · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-pkcs11-devel · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-pkcs11-libs · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-pkcs11-libs-debuginfo · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-pkcs11-utils · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-pkcs11-utils-debuginfo · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-utils · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind-utils-debuginfo · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
| bind9 · Debian 12.15 (bookworm) | 1:9.18.16-1~deb12u1 | DEBIAN-CVE-2023-2911 | Jun 21, 2023 |
| bind9 · Debian 13.5 (trixie) | 1:9.18.16-1 | DEBIAN-CVE-2023-2911 | Jun 21, 2023 |
| bind9 · Debian 14 | 1:9.18.16-1 | DEBIAN-CVE-2023-2911 | Jun 21, 2023 |
| bind9 · Ubuntu 20.04 LTS (focal) | 1:9.16.1-0ubuntu2.15 | bind9 1:9.16.1-0ubuntu2.15 | Jun 20, 2023 |
| bind9 · Ubuntu 22.04.1 LTS (jammy) | 1:9.18.12-0ubuntu0.22.04.2 | bind9 1:9.18.12-0ubuntu0.22.04.2 | Jun 20, 2023 |
| bind9 · Ubuntu 24.10 (oracular) | 1:9.18.12-1ubuntu2 | bind9 1:9.18.12-1ubuntu2 | Jun 21, 2023 |
| bind9 · Ubuntu 25.04 (plucky) | 1:9.18.12-1ubuntu2 | bind9 1:9.18.12-1ubuntu2 | Jun 21, 2023 |
| bind9-dnsutils · Ubuntu 20.04 LTS (focal) | 1:9.16.1-0ubuntu2.15 | bind9-dnsutils 1:9.16.1-0ubuntu2.15 | Jun 20, 2023 |
| bind9-dnsutils · Ubuntu 22.04.1 LTS (jammy) | 1:9.18.12-0ubuntu0.22.04.2 | bind9-dnsutils 1:9.18.12-0ubuntu0.22.04.2 | Jun 20, 2023 |
| bind9-dnsutils · Ubuntu 24.10 (oracular) | 1:9.18.12-1ubuntu2 | bind9-dnsutils 1:9.18.12-1ubuntu2 | Jun 21, 2023 |
| bind9-dnsutils · Ubuntu 25.04 (plucky) | 1:9.18.12-1ubuntu2 | bind9-dnsutils 1:9.18.12-1ubuntu2 | Jun 21, 2023 |
| bind9-host · Ubuntu 20.04 LTS (focal) | 1:9.16.1-0ubuntu2.15 | bind9-host 1:9.16.1-0ubuntu2.15 | Jun 20, 2023 |
| bind9-host · Ubuntu 22.04.1 LTS (jammy) | 1:9.18.12-0ubuntu0.22.04.2 | bind9-host 1:9.18.12-0ubuntu0.22.04.2 | Jun 20, 2023 |
| bind9-host · Ubuntu 24.10 (oracular) | 1:9.18.12-1ubuntu2 | bind9-host 1:9.18.12-1ubuntu2 | Jun 21, 2023 |
| bind9-host · Ubuntu 25.04 (plucky) | 1:9.18.12-1ubuntu2 | bind9-host 1:9.18.12-1ubuntu2 | Jun 21, 2023 |
| bind9-libs · Ubuntu 20.04 LTS (focal) | 1:9.16.1-0ubuntu2.15 | bind9-libs 1:9.16.1-0ubuntu2.15 | Jun 20, 2023 |
| bind9-libs · Ubuntu 22.04.1 LTS (jammy) | 1:9.18.12-0ubuntu0.22.04.2 | bind9-libs 1:9.18.12-0ubuntu0.22.04.2 | Jun 20, 2023 |
| bind9-libs · Ubuntu 24.10 (oracular) | 1:9.18.12-1ubuntu2 | bind9-libs 1:9.18.12-1ubuntu2 | Jun 21, 2023 |
| bind9-libs · Ubuntu 25.04 (plucky) | 1:9.18.12-1ubuntu2 | bind9-libs 1:9.18.12-1ubuntu2 | Jun 21, 2023 |
| bind9-utils · Ubuntu 20.04 LTS (focal) | 1:9.16.1-0ubuntu2.15 | bind9-utils 1:9.16.1-0ubuntu2.15 | Jun 20, 2023 |
| bind9-utils · Ubuntu 22.04.1 LTS (jammy) | 1:9.18.12-0ubuntu0.22.04.2 | bind9-utils 1:9.18.12-0ubuntu0.22.04.2 | Jun 20, 2023 |
| bind9-utils · Ubuntu 24.10 (oracular) | 1:9.18.12-1ubuntu2 | bind9-utils 1:9.18.12-1ubuntu2 | Jun 21, 2023 |
| bind9-utils · Ubuntu 25.04 (plucky) | 1:9.18.12-1ubuntu2 | bind9-utils 1:9.18.12-1ubuntu2 | Jun 21, 2023 |
| bind9utils · Ubuntu 20.04 LTS (focal) | 1:9.16.1-0ubuntu2.15 | bind9utils 1:9.16.1-0ubuntu2.15 | Jun 20, 2023 |
| bind9utils · Ubuntu 22.04.1 LTS (jammy) | 1:9.18.12-0ubuntu0.22.04.2 | bind9utils 1:9.18.12-0ubuntu0.22.04.2 | Jun 20, 2023 |
| bind9utils · Ubuntu 24.10 (oracular) | 1:9.18.12-1ubuntu2 | bind9utils 1:9.18.12-1ubuntu2 | Jun 21, 2023 |
| bind9utils · Ubuntu 25.04 (plucky) | 1:9.18.12-1ubuntu2 | bind9utils 1:9.18.12-1ubuntu2 | Jun 21, 2023 |
| dnsutils · Ubuntu 20.04 LTS (focal) | 1:9.16.1-0ubuntu2.15 | dnsutils 1:9.16.1-0ubuntu2.15 | Jun 20, 2023 |
| dnsutils · Ubuntu 22.04.1 LTS (jammy) | 1:9.18.12-0ubuntu0.22.04.2 | dnsutils 1:9.18.12-0ubuntu0.22.04.2 | Jun 20, 2023 |
| dnsutils · Ubuntu 24.10 (oracular) | 1:9.18.12-1ubuntu2 | dnsutils 1:9.18.12-1ubuntu2 | Jun 21, 2023 |
| dnsutils · Ubuntu 25.04 (plucky) | 1:9.18.12-1ubuntu2 | dnsutils 1:9.18.12-1ubuntu2 | Jun 21, 2023 |
| python3-bind · amzn 2023 | 32:9.16.42-1.amzn2023.0.1 | ALAS2023-2023-240 | Jul 5, 2023 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.