{"id":"CVE-2015-0239","state":"PUBLISHED","title":"The em_sysenter function in arch/x86/kvm/emulate.c in the Linux kernel before 3.18.5, when the guest OS lacks SYSENTER MSR initialization, allows guest OS users to gain guest OS pr","description":"The em_sysenter function in arch/x86/kvm/emulate.c in the Linux kernel before 3.18.5, when the guest OS lacks SYSENTER MSR initialization, allows guest OS users to gain guest OS privileges or cause a denial of service (guest OS crash) by triggering use of a 16-bit code segment for emulation of a SYSENTER instruction.","publishedAt":"2015-03-02T11:00:00.000Z","updatedAt":"2024-08-06T04:03:10.562Z","severity":null,"assigner":"redhat","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["http://www.ubuntu.com/usn/USN-2515-1","http://www.debian.org/security/2015/dsa-3170","http://www.securityfocus.com/bid/72842","http://www.openwall.com/lists/oss-security/2015/01/27/6","https://bugzilla.redhat.com/show_bug.cgi?id=1186448","http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f3747379accba8e95d70cec0eae0582c8c182050","http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html","https://github.com/torvalds/linux/commit/f3747379accba8e95d70cec0eae0582c8c182050","http://www.ubuntu.com/usn/USN-2514-1","http://www.ubuntu.com/usn/USN-2518-1","http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html","http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5","http://www.mandriva.com/security/advisories?name=MDVSA-2015:058","http://permalink.gmane.org/gmane.linux.kernel.commits.head/502245","http://www.ubuntu.com/usn/USN-2517-1","http://www.ubuntu.com/usn/USN-2516-1","http://rhn.redhat.com/errata/RHSA-2015-1272.html","http://www.ubuntu.com/usn/USN-2513-1"],"weaknesses":[],"ingestedAt":"2026-10-29T19:41:50.455Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2015/0xxx/CVE-2015-0239.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2015-0239","state":"PUBLISHED","datePublished":"2015-03-02T11:00:00.000Z","dateUpdated":"2024-08-06T04:03:10.562Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2014-11-18T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"The em_sysenter function in arch/x86/kvm/emulate.c in the Linux kernel before 3.18.5, when the guest OS lacks SYSENTER MSR initialization, allows guest OS users to gain guest OS privileges or cause a denial of service (guest OS crash) by triggering use of a 16-bit code segment for emulation of a SYSENTER instruction."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"http://www.ubuntu.com/usn/USN-2515-1","name":"USN-2515-1","tags":["vendor-advisory","x_refsource_UBUNTU"]},{"url":"http://www.debian.org/security/2015/dsa-3170","name":"DSA-3170","tags":["vendor-advisory","x_refsource_DEBIAN"]},{"url":"http://www.securityfocus.com/bid/72842","name":"72842","tags":["vdb-entry","x_refsource_BID"]},{"url":"http://www.openwall.com/lists/oss-security/2015/01/27/6","name":"[oss-security] 20150127 KVM SYSENTER emulation vulnerability - 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