{"id":"CVE-2023-5517","state":"PUBLISHED","title":"Querying RFC 1918 reverse zones may cause an assertion failure when \"nxdomain-redirect\" is enabled","description":"A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when:\n\n  - `nxdomain-redirect <domain>;` is configured, and\n  - the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response.\nThis issue affects BIND 9 versions 9.12.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.","publishedAt":"2024-02-13T14:04:54.389Z","updatedAt":"2025-02-13T17:25:39.556Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"isc"},"assigner":"isc","products":["ISC BIND 9"],"affected":[{"vendor":"ISC","product":"BIND 9","defaultStatus":"unaffected","versions":[{"version":"9.12.0","status":"affected","lessThanOrEqual":"9.16.45","versionType":"custom"},{"version":"9.18.0","status":"affected","lessThanOrEqual":"9.18.21","versionType":"custom"},{"version":"9.19.0","status":"affected","lessThanOrEqual":"9.19.19","versionType":"custom"},{"version":"9.16.8-S1","status":"affected","lessThanOrEqual":"9.16.45-S1","versionType":"custom"},{"version":"9.18.11-S1","status":"affected","lessThanOrEqual":"9.18.21-S1","versionType":"custom"}]}],"references":["https://kb.isc.org/docs/cve-2023-5517","http://www.openwall.com/lists/oss-security/2024/02/13/1","https://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/"],"weaknesses":["CWE-617"],"ingestedAt":"2026-10-29T20:06:42.242Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/5xxx/CVE-2023-5517.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-5517","state":"PUBLISHED","datePublished":"2024-02-13T14:04:54.389Z","dateUpdated":"2025-02-13T17:25:39.556Z","assignerShortName":"isc","assignerOrgId":"404fd4d2-a609-4245-b543-2c944a302a22","dateReserved":"2023-10-11T07:02:42.359Z"},"containers":{"cna":{"title":"Querying RFC 1918 reverse zones may cause an assertion failure when \"nxdomain-redirect\" is enabled","descriptions":[{"lang":"en","value":"A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when:\n\n  - `nxdomain-redirect <domain>;` is configured, and\n  - the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response.\nThis issue affects BIND 9 versions 9.12.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1."}],"affected":[{"vendor":"ISC","product":"BIND 9","defaultStatus":"unaffected","versions":[{"version":"9.12.0","status":"affected","lessThanOrEqual":"9.16.45","versionType":"custom"},{"version":"9.18.0","status":"affected","lessThanOrEqual":"9.18.21","versionType":"custom"},{"version":"9.19.0","status":"affected","lessThanOrEqual":"9.19.19","versionType":"custom"},{"version":"9.16.8-S1","status":"affected","lessThanOrEqual":"9.16.45-S1","versionType":"custom"},{"version":"9.18.11-S1","status":"affected","lessThanOrEqual":"9.18.21-S1","versionType":"custom"}]}],"references":[{"url":"https://kb.isc.org/docs/cve-2023-5517","name":"CVE-2023-5517","tags":["vendor-advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2024/02/13/1"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"},{"url":"https://security.netapp.com/advisory/ntap-20240503-0006/"}],"metrics":[{"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH"}}],"providerMetadata":{"shortName":"isc","orgId":"404fd4d2-a609-4245-b543-2c944a302a22","dateUpdated":"2024-05-03T13:06:16.924Z"},"datePublic":"2024-02-13T00:00:00.000Z","impacts":[{"descriptions":[{"lang":"en","value":"If both of the above conditions are met, a single suitable query will cause `named` to crash."}]}],"workarounds":[{"lang":"en","value":"Disabling the `nxdomain-redirect` feature makes the faulty code path impossible to reach, preventing this flaw from being exploitable."}],"exploits":[{"lang":"en","value":"We are not aware of any active exploits."}],"solutions":[{"lang":"en","value":"Upgrade to the patched release most closely related to your current version of BIND 9: 9.16.48, 9.18.24, 9.19.21, 9.16.48-S1, or 9.18.24-S1."}],"source":{"discovery":"EXTERNAL"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://kb.isc.org/docs/cve-2023-5517","name":"CVE-2023-5517","tags":["vendor-advisory","x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2024/02/13/1","tags":["x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/","tags":["x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/","tags":["x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/","tags":["x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/","tags":["x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20240503-0006/","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T07:59:44.936Z"}},{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"isc","product":"bind_9","defaultStatus":"unknown","versions":[{"version":"9.12.0","status":"affected","lessThanOrEqual":"9.16.45","versionType":"custom"},{"version":"9.18.0","status":"affected","lessThanOrEqual":"9.18.21","versionType":"custom"},{"version":"9.19.0","status":"affected","lessThanOrEqual":"9.19.19","versionType":"custom"},{"version":"9.16.8-S1","status":"affected","lessThanOrEqual":"9.16.45-S1","versionType":"custom"},{"version":"9.18.11-S1","status":"affected","lessThanOrEqual":"9.18.21-S1","versionType":"custom"}],"cpes":["cpe:2.3:a:isc:bind_9:*:*:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-08-22T13:32:01.260266Z","id":"CVE-2023-5517","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-617","type":"CWE","lang":"en","description":"CWE-617 Reachable Assertion"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-08-22T13:56:51.119Z"}}]}}}