Vulnerability · Published Feb 13, 2024 · Assigned by isc
CVE-2023-5680Cleaning an ECS-enabled cache may cause excessive CPU load
Medium 5.3
In plain English
A medium-severity security flaw in BIND 9 from ISC. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.6%top 49.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
If a resolver cache has a very large number of ECS records stored for the same name, the process of cleaning the cache database node for this name can significantly impair query performance. This issue affects BIND 9 versions 9.11.3-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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | bind | 9.18.24-r0 | ALPINE-CVE-2023-5680 |
| Alpine:v3.21 | bind | 9.18.24-r0 | ALPINE-CVE-2023-5680 |
| Alpine:v3.22 | bind | 9.18.24-r0 | ALPINE-CVE-2023-5680 |
| Alpine:v3.23 | bind | 9.18.24-r0 | ALPINE-CVE-2023-5680 |
| Alpine:v3.24 | bind | 9.18.24-r0 | ALPINE-CVE-2023-5680 |