| CVE-2023-2911 | Date: (C)2023-06-22 (M)2024-04-26 |
If the `recursive-clients` quota is reached on a BIND 9 resolver configured with both `stale-answer-enable yes;` and `stale-answer-client-timeout 0;`, a sequence of serve-stale-related lookups could cause `named` to loop and terminate unexpectedly due to a stack overflow.
This issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through 9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.
CVSS Score and Metrics +CVSS Score and Metrics -| CVSS V3 Severity: | CVSS V2 Severity: |
| CVSS Score : 7.5 | CVSS Score : |
| Exploit Score: 3.9 | Exploit Score: |
| Impact Score: 3.6 | Impact Score: |
| |
| CVSS V3 Metrics: | CVSS V2 Metrics: |
| Attack Vector: NETWORK | Access Vector: |
| Attack Complexity: LOW | Access Complexity: |
| Privileges Required: NONE | Authentication: |
| User Interaction: NONE | Confidentiality: |
| Scope: UNCHANGED | Integrity: |
| Confidentiality: NONE | Availability: |
| Integrity: NONE | |
| Availability: HIGH | |
| | |
