{"id":"CVE-2017-7472","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-7472","generatedAt":"2026-10-28T21:56:14.930Z","title":"The KEYS subsystem in the Linux kernel before 4.10.13 allows local users to cause a denial of service (memory consumption) via a series of KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring calls.","description":"The KEYS subsystem in the Linux kernel before 4.10.13 allows local users to cause a denial of service (memory consumption) via a series of KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring calls.","published":"2017-05-11T19:29:00.000Z","lastModified":"2026-06-17T01:24:25.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.0","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-404"],"affected":["linux/linux kernel"],"epss":{"score":0.02263,"percentile":0.82907,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2017-06-07","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":42136,"kind":"exploit","title":"Linux Kernel < 4.10.13 - 'keyctl_set_reqkey_keyring' Local Denial of Service","url":"https://www.exploit-db.com/exploits/42136","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/dos/42136.c","file":"exploits/linux/dos/42136.c","published":"2017-06-07","added":"2017-06-07","updated":"2017-06-07","author":"Marcus Meissner","type":"dos","platform":"linux","port":null,"verified":true,"codes":["CVE-2017-7472"],"tags":"Denial of Service (DoS)","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugzilla.novell.com/show_bug.cgi?id=1034862"}]},"verdict":{"level":"high","text":"A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 2.3%. Treat it as high on anything reachable from the internet."},"changes":[],"references":[{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c9f838d104fed6f2f61d68164712e3204bf5271b","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html","source":"secalert@redhat.com"},{"url":"http://openwall.com/lists/oss-security/2017/05/11/1","tags":["Mailing List","Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/98422","source":"secalert@redhat.com"},{"url":"http://www.securitytracker.com/id/1038471","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:0151","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:0152","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:0181","source":"secalert@redhat.com"},{"url":"https://bugzilla.novell.com/show_bug.cgi?id=1034862","tags":["Issue Tracking","Patch"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1442086","tags":["Issue Tracking","Patch"],"source":"secalert@redhat.com"},{"url":"https://github.com/torvalds/linux/commit/c9f838d104fed6f2f61d68164712e3204bf5271b","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://lkml.org/lkml/2017/4/1/235","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"https://lkml.org/lkml/2017/4/3/724","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"https://www.exploit-db.com/exploits/42136/","source":"secalert@redhat.com"},{"url":"https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.13","tags":["Release Notes","Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c9f838d104fed6f2f61d68164712e3204bf5271b","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://openwall.com/lists/oss-security/2017/05/11/1","tags":["Mailing List","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/98422","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1038471","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:0151","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:0152","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:0181","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.novell.com/show_bug.cgi?id=1034862","tags":["Issue Tracking","Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1442086","tags":["Issue Tracking","Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/c9f838d104fed6f2f61d68164712e3204bf5271b","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lkml.org/lkml/2017/4/1/235","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lkml.org/lkml/2017/4/3/724","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/42136/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.13","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-7472","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."}