VULNERABILITY

Ubuntu: USN-7526-1 (CVE-2025-40775): Bind vulnerability

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Ubuntu: USN-7526-1 (CVE-2025-40775): Bind vulnerability

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
05/21/2025
Created
05/23/2025
Added
05/22/2025
Modified
05/26/2025

Description

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.

Solution(s)

  • ubuntu-upgrade-bind9

References

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