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CVE-2026-11622 on CTRL-OS 26.05

Aliases: CVE-2026-11622

Packages: bind

Status: Plausible

Advisory Information

A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer from runaway memory usage. The attacker needs to be able to send queries faster than the resolver can perform validation. The increased memory usage can be orders of magnitude beyond the limit configured in the max-cache-size parameter. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.

Updates

2026-07-23 23:45 CEST

Metadata changes:

  • Status for package bind: “Plausible”

2026-07-23 23:40 CEST

Metadata changes:

  • Status for package bind: “New”