Updated: 2025-12-14 03:16:17.303
Description:
The DNS message parsing code in `named` includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers. This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | NONE | 0.0 |
| CVSS Version 3.x | HIGH | 7.5 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| Oracle Linux 7 ELS | bind | 9.11.4 | 7.5 | HIGH | Already Fixed | 2026-01-20 01:23:24 | ||
| Oracle Linux 7 ELS | dhcp | 4.2.5 | 7.5 | HIGH | Not Vulnerable | 2026-01-20 01:23:23 | ||
| Ubuntu 16.04 ELS | bind9 | 9.10.3 | 7.5 | HIGH | Ignored | 2024-11-14 12:13:40 | We have reasoned not to port the patches for this CVE since the changes introduced are too intrusive | |
| Ubuntu 16.04 ELS | dhcp | 4.3.3 | 7.5 | HIGH | Not Vulnerable | 2024-10-09 14:26:48 | We have reasoned not to port the patches for this CVE since the changes introduced are too intrusive | |
| Ubuntu 18.04 ELS | bind9 | 9.11.3 | 7.5 | HIGH | Released | CLSA-2024:1731345748 | 2024-11-11 13:32:44 | We have reasoned not to port the patches for this CVE since the changes introduced are too intrusive |
| Ubuntu 18.04 ELS | dhcp | 4.3.5 | 7.5 | HIGH | Not Vulnerable | 2024-10-02 14:26:02 | We have reasoned not to port the patches for this CVE since the changes introduced are too intrusive |