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7.5
CVSSv3

CVE-2023-5517

Published: 13/02/2024 Updated: 03/05/2024
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 0

Vulnerability Summary

A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when: - `nxdomain-redirect <domain>;` is configured, and - the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response. This issue affects BIND 9 versions 9.12.0 up to and including 9.16.45, 9.18.0 up to and including 9.18.21, 9.19.0 up to and including 9.19.19, 9.16.8-S1 up to and including 9.16.45-S1, and 9.18.11-S1 up to and including 9.18.21-S1.

Vulnerability Trend

Vendor Advisories

Red Hat:
Description<!---->A flaw was found in the bind package which may result in a a Denial of Service in `named` process This is a result of a reachable assertion, leading `named` to prematurely terminate when both conditions are met: nxdomain-redirect for the queried domain is configured and the resolver receives a PTR query, used for a reverse DNS lo ...

Mailing Lists

Full Disclosure: ISC has disclosed six vulnerabilities in BIND 9 (CVE-2023-4408, CVE-2023-5517, CVE-2023-5679, CVE-2023-6516, CVE-2023-50387, CVE-2023-50868)
On 13 February 2024 we (Internet Systems Consortium) disclosed six vulnerabilities affecting our BIND 9 software: - CVE-2023-4408: Parsing large DNS messages may cause excessive CPU load kbiscorg/docs/cve-2023-4408 - CVE-2023-5517: Querying RFC 1918 reverse zones may cause an assertion failure when "nxdomain-redirect" is e ...

References

https://kb.isc.org/docs/cve-2023-5517http://www.openwall.com/lists/oss-security/2024/02/13/1https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/https://security.netapp.com/advisory/ntap-20240503-0006/https://nvd.nist.govhttps://seclists.org/oss-sec/2024/q1/125https://access.redhat.com/security/cve/cve-2023-5517
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
deserializationCVE-2024-4541CVE-2024-3080CVE-2024-4787log injectionCVE-2024-5967injectCVE-2024-30078CVE-2024-5899
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