CVE-2023-5517 — A flaw in query-handling code can cause `named` to exit prematurely with an asse
A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when:
Published
2024-02-13T14:04:54.389Z
Last modified
2025-02-13T17:25:39.556Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
01What is this vulnerability?
A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when:
02Affected products
| Vendor | Product | Versions |
|---|
| ISC | BIND 9 | 9.12.0, 9.18.0, 9.19.0, 9.16.8-S1, 9.18.11-S1 |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2024-02-13T14:04:54.389Z
- Last modified: 2025-02-13T17:25:39.556Z
09References
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