{"id":"CVE-2017-12134","details":"The xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain sensitive memory information, cause a denial of service, or gain host OS privileges by leveraging incorrect block IO merge-ability calculation.","modified":"2026-03-12T22:32:52.154022Z","published":"2017-08-24T14:29:00.193Z","related":["MGASA-2017-0342","MGASA-2017-0343","MGASA-2017-0344","MGASA-2017-0345","MGASA-2017-0346","MGASA-2017-0347","SUSE-SU-2017:2847-1","SUSE-SU-2017:2869-1","SUSE-SU-2017:2956-1"],"references":[{"type":"WEB","url":"https://usn.ubuntu.com/3655-1/"},{"type":"WEB","url":"https://usn.ubuntu.com/3655-2/"},{"type":"ADVISORY","url":"http://www.debian.org/security/2017/dsa-3981"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2017/08/15/4"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/100343"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1039176"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201801-14"},{"type":"FIX","url":"http://xenbits.xen.org/xsa/advisory-229.html"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1477656"},{"type":"FIX","url":"https://support.citrix.com/article/CTX225941"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-12134.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"6.0.2"}]},{"events":[{"introduced":"0"},{"last_affected":"6.2.0"}]},{"events":[{"introduced":"0"},{"last_affected":"6.5"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.1"}]},{"events":[{"introduced":"0"},{"last_affected":"7.2"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}