{"id":"CVE-2003-1013","url":"https://www.cyber-defence.io/tools/cve/CVE-2003-1013","generatedAt":"2026-10-27T17:29:49.952Z","title":"The Q.931 dissector in Ethereal before 0.10.0, and Tethereal, allows remote attackers to cause a denial of service (crash) via a malformed Q.931, which triggers a null dereference.","description":"The Q.931 dissector in Ethereal before 0.10.0, and Tethereal, allows remote attackers to cause a denial of service (crash) via a malformed Q.931, which triggers a null dereference.","published":"2004-01-05T05:00:00.000Z","lastModified":"2026-06-16T22:03:22.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["ethereal/ethereal"],"epss":{"score":0.02934,"percentile":0.87002,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.93%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"ftp://patches.sgi.com/support/free/security/advisories/20040103-01-U.asc","tags":["Broken Link"],"source":"cve@mitre.org"},{"url":"ftp://patches.sgi.com/support/free/security/advisories/20040202-01-U.asc","tags":["Broken Link"],"source":"cve@mitre.org"},{"url":"http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000801","tags":["Broken Link"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/10531","tags":["Broken Link"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/10568","tags":["Broken Link"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/10570","tags":["Broken Link"],"source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2003/dsa-407","tags":["Broken Link"],"source":"cve@mitre.org"},{"url":"http://www.ethereal.com/appnotes/enpa-sa-00012.html","tags":["Broken Link","Patch","Vendor Advisory","URL Repurposed"],"source":"cve@mitre.org"},{"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2004:002","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.redhat.com/support/errata/RHSA-2004-001.html","tags":["Broken Link","Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.redhat.com/support/errata/RHSA-2004-002.html","tags":["Broken Link"],"source":"cve@mitre.org"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10097","tags":["Broken Link"],"source":"cve@mitre.org"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A857","tags":["Broken Link"],"source":"cve@mitre.org"},{"url":"ftp://patches.sgi.com/support/free/security/advisories/20040103-01-U.asc","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"ftp://patches.sgi.com/support/free/security/advisories/20040202-01-U.asc","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000801","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/10531","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/10568","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/10570","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2003/dsa-407","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ethereal.com/appnotes/enpa-sa-00012.html","tags":["Broken Link","Patch","Vendor Advisory","URL Repurposed"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2004:002","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.redhat.com/support/errata/RHSA-2004-001.html","tags":["Broken Link","Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.redhat.com/support/errata/RHSA-2004-002.html","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10097","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A857","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2003-1013","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}