{"id":"CVE-2015-3146","url":"https://www.cyber-defence.io/tools/cve/CVE-2015-3146","generatedAt":"2026-10-27T22:06:01.613Z","title":"The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted SSH…","description":"The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted SSH packet.","published":"2016-04-13T17:59:03.000Z","lastModified":"2026-06-17T00:25:23.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":[],"affected":["libssh/libssh","canonical/ubuntu linux","debian/debian linux","fedoraproject/fedora"],"epss":{"score":0.03959,"percentile":0.90368,"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 (3.96%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161802.html","source":"secalert@redhat.com"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158013.html","source":"secalert@redhat.com"},{"url":"http://www.debian.org/security/2016/dsa-3488","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2912-1","source":"secalert@redhat.com"},{"url":"https://git.libssh.org/projects/libssh.git/commit/?h=libssh-0.6.5&id=94f6955fbaee6fda9385a23e505497efe21f5b4f","source":"secalert@redhat.com"},{"url":"https://www.libssh.org/2015/04/30/libssh-0-6-5-security-and-bugfix-release/","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://www.libssh.org/security/advisories/CVE-2015-3146.txt","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161802.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158013.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2016/dsa-3488","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2912-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.libssh.org/projects/libssh.git/commit/?h=libssh-0.6.5&id=94f6955fbaee6fda9385a23e505497efe21f5b4f","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.libssh.org/2015/04/30/libssh-0-6-5-security-and-bugfix-release/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.libssh.org/security/advisories/CVE-2015-3146.txt","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2015-3146","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."}