SB2026081462 - openEuler 24.03 LTS SP3 update for bind

Description

This security bulletin contains information about 1 vulnerability.

1) Resource exhaustion (CVE-ID: CVE-2026-11622)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled resource consumption in the DNSSEC validating resolver when processing queries during a random subdomain attack against a DNSSEC-signed zone. A remote attacker can send queries faster than the resolver can perform validation to cause a denial of service.

Only DNSSEC validating resolvers targeted with a random subdomain attack against a DNSSEC-signed zone are affected.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3329