Description
An error in zone database reference counting can lead to an assertion failure if a server which is running an affected version of BIND attempts several transfers of a slave zone in quick succession. This defect could be deliberately exercised by an attacker who is permitted to cause a vulnerable server to initiate zone transfers (for example: by sending valid NOTIFY messages), causing the named process to exit after failing the assertion test. Affects BIND 9.12.0 and 9.12.1.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.23 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.22 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.21 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.20 | bind | 9.12.1_p2-r0 | — |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.18 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.17 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.16 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.15 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.14 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.13 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.12 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.11 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.10 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.9 | bind | 9.12.1_p2-r0 | — |
| Alpine v3.8 | bind | 9.12.1_p2-r0 | — |