{"id":"CVE-2026-0915","state":"PUBLISHED","title":"getnetbyaddr and getnetbyaddr_r leak stack contents to DNS resovler","description":"Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to the configured DNS resolver.","publishedAt":"2026-01-15T22:08:41.630Z","updatedAt":"2026-01-20T16:03:52.590Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","source":"CISA-ADP"},"assigner":"glibc","products":["The GNU C Library glibc"],"affected":[{"vendor":"The GNU C Library","product":"glibc","defaultStatus":"unaffected","versions":[{"version":"2.0","status":"affected","lessThanOrEqual":"2.42","versionType":"custom"}]}],"references":["https://sourceware.org/bugzilla/show_bug.cgi?id=33802","http://www.openwall.com/lists/oss-security/2026/01/16/6"],"weaknesses":["CWE-908"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/0xxx/CVE-2026-0915.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-0915","state":"PUBLISHED","datePublished":"2026-01-15T22:08:41.630Z","dateUpdated":"2026-01-20T16:03:52.590Z","assignerShortName":"glibc","assignerOrgId":"3ff69d7a-14f2-4f67-a097-88dee7810d18","dateReserved":"2026-01-13T19:02:42.388Z"},"containers":{"cna":{"title":"getnetbyaddr and getnetbyaddr_r leak stack contents to DNS resovler","descriptions":[{"lang":"en","value":"Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to the configured DNS resolver."}],"affected":[{"vendor":"The GNU C Library","product":"glibc","defaultStatus":"unaffected","versions":[{"version":"2.0","status":"affected","lessThanOrEqual":"2.42","versionType":"custom"}]}],"references":[{"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=33802"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-908","description":"CWE-908 Use of Uninitialized Resource","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"glibc","orgId":"3ff69d7a-14f2-4f67-a097-88dee7810d18","dateUpdated":"2026-01-15T22:08:41.630Z"},"credits":[{"lang":"en","type":"finder","value":"Igor Morgenstern, Aisle Research"}],"impacts":[{"capecId":"CAPEC-204","descriptions":[{"lang":"en","value":"CAPEC-204 Lifting Sensitive Data Embedded in Cache"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/01/16/6"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-01-16T17:06:43.013Z"}},{"title":"CISA ADP Vulnrichment","references":[{"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=33802","tags":["exploit"]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-01-20T16:03:19.464174Z","id":"CVE-2026-0915","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-20T16:03:52.590Z"}}]}}}