{"cve":"CVE-2012-3517","nvd":{"published":"2012-08-26T03:17:44.043","modified":"2026-06-16T23:43:23.480","status":"Modified","description":"Use-after-free vulnerability in dns.c in Tor before 0.2.2.38 might allow remote attackers to cause a denial of service (daemon crash) via vectors related to failed DNS requests.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088006.html","http://lists.opensuse.org/opensuse-updates/2012-08/msg00048.html","http://openwall.com/lists/oss-security/2012/08/21/6","http://security.gentoo.org/glsa/glsa-201301-03.xml","https://bugzilla.redhat.com/show_bug.cgi?id=849949"],"products":["tor:tor"],"source":"nvd","synced_at":"2026-10-19T20:25:53.526315492+00:00"},"epss":{"cve":"CVE-2012-3517","score":0.02775,"percentile":0.86352,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}