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CVE-2025-40775
Good to know:
Date: May 21, 2025
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.
Severity Score
Severity Score
Weakness Type (CWE)
Improper Handling of Undefined Values
CWE-232Top Fix
Upgrade Version
Upgrade to version https://github.com/isc-projects/bind9.git - v9.20.9;https://github.com/isc-projects/bind9.git - v9.21.8
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | NONE |
| Availability (A): | HIGH |