{"id":"CVE-2017-15118","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-15118","generatedAt":"2026-10-28T22:43:47.291Z","title":"A stack-based buffer overflow vulnerability was found in NBD server implementation in qemu before 2.11 allowing a client to request an export name of size up to 4096 bytes, which in fact should be limited to 256 bytes, causing an out-of-bounds stack…","description":"A stack-based buffer overflow vulnerability was found in NBD server implementation in qemu before 2.11 allowing a client to request an export name of size up to 4096 bytes, which in fact should be limited to 256 bytes, causing an out-of-bounds stack write in the qemu process. If NBD server requires TLS, the attacker cannot trigger the buffer overflow without first successfully negotiating TLS.","published":"2018-07-27T21:29:00.000Z","lastModified":"2026-06-17T01:07:17.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-121","CWE-787"],"affected":["qemu/qemu","canonical/ubuntu linux","redhat/enterprise linux"],"epss":{"score":0.11931,"percentile":0.96092,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2017-11-29","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":43194,"kind":"exploit","title":"QEMU - NBD Server Long Export Name Stack Buffer Overflow","url":"https://www.exploit-db.com/exploits/43194","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/dos/43194.txt","file":"exploits/linux/dos/43194.txt","published":"2017-11-29","added":"2017-11-29","updated":"2017-11-29","author":"Eric Blake","type":"dos","platform":"linux","port":null,"verified":true,"codes":["CVE-2017-15118"],"tags":"Buffer Overflow","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05045.html"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 11.9%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://www.openwall.com/lists/oss-security/2017/11/28/8","tags":["Mailing List","Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/101975","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:1104","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15118","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05045.html","tags":["Exploit","Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://usn.ubuntu.com/3575-1/","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://www.exploit-db.com/exploits/43194/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2017/11/28/8","tags":["Mailing List","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/101975","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:1104","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15118","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05045.html","tags":["Exploit","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3575-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/43194/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-15118","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."}