CVE-2025-40775
Fixed in a distro release EPSS 15%CVSS 7.5
When an incoming DNS protocol message includes a Transaction Signature (TSIG), BIND always checks it. If the TSIG contains an invalid value in the algorithm field, BIND immediately aborts with an assertion failure. This issue affects BIND 9 versions 9.20.0 through 9.20.8 and 9.21.0 through 9.21.7.
Products: ISC BIND 9
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.18 | bind | 9.18.37-r0 |
| Alpine 3.19 | bind | 9.18.37-r0 |
| Alpine 3.20 | bind | 9.18.37-r0 |
| Alpine 3.21 | bind | 9.18.37-r0 |
| Alpine 3.22 | bind | 9.20.9-r0 |
| Alpine 3.23 | bind | 9.20.9-r0 |
| Alpine 3.24 | bind | 9.20.9-r0 |
| Arch Linux | bind | 9.20.9-1 |
| Debian 13 | bind9 | 1:9.20.9-1 |
| Debian 14 | bind9 | 1:9.20.9-1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | bind | 9.20.9-150700.3.3.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | bind | 9.20.9-150700.3.3.1 |
| Ubuntu 25.04 | bind9 | 1:9.20.4-3ubuntu1.1 |
| openSUSE Tumbleweed | bind | 9.20.9-1.1 |