CVE-2015-0239
CVE-2015-0239
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 products
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http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f3747379accba8e95d70cec0eae0582c8c182050http://permalink.gmane.org/gmane.linux.kernel.commits.head/502245http://rhn.redhat.com/errata/RHSA-2015-1272.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=1186448https://github.com/torvalds/linux/commit/f3747379accba8e95d70cec0eae0582c8c182050http://www.debian.org/security/2015/dsa-3170http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5http://www.mandriva.com/security/advisories?name=MDVSA-2015:058http://www.openwall.com/lists/oss-security/2015/01/27/6http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlhttp://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlhttp://www.securityfocus.com/bid/72842