CVE-2025-40775
High · 7.5CVSS
7.5
EPSS
15.3%
Published
May 21, 2025
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Alpine:v3.18 | bind | 0 | 9.18.37-r0 |
| Alpine:v3.19 | bind | 0 | 9.18.37-r0 |
| Alpine:v3.20 | bind | 0 | 9.18.37-r0 |
| Alpine:v3.21 | bind | 0 | 9.18.37-r0 |
| Alpine:v3.22 | bind | 0 | 9.20.9-r0 |
| Debian:11 | bind9 | 0 | No fix |
| Debian:13 | bind9 | 0 | No fix |
| SUSE:Linux Enterprise Module for Basesystem 15 SP7 | bind | 0 | 9.20.9-150700.3.3.1 |
| SUSE:Linux Enterprise Module for Server Applications 15 SP7 | bind | 0 | 9.20.9-150700.3.3.1 |
| openSUSE:Tumbleweed | bind | 0 | 9.20.9-1.1 |
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