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.
Metrics
CVSS 2.0 4.4/10
AV:L/AC:M/Au:N/C:P/I:P/A:PWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f3747379accba8e95d70cec0eae0582c8c182050
- http://permalink.gmane.org/gmane.linux.kernel.commits.head/502245Broken Link
- http://rhn.redhat.com/errata/RHSA-2015-1272.htmlThird Party Advisory
- http://www.debian.org/security/2015/dsa-3170Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5Release Notes, Vendor Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:058Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/01/27/6Exploit, Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlThird Party Advisory
- http://www.securityfocus.com/bid/72842Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2513-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2514-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2515-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2516-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2517-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2518-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1186448Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/f3747379accba8e95d70cec0eae0582c8c182050Patch, Third Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f3747379accba8e95d70cec0eae0582c8c182050
- http://permalink.gmane.org/gmane.linux.kernel.commits.head/502245Broken Link
- http://rhn.redhat.com/errata/RHSA-2015-1272.htmlThird Party Advisory
- http://www.debian.org/security/2015/dsa-3170Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5Release Notes, Vendor Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:058Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/01/27/6Exploit, Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlThird Party Advisory
- http://www.securityfocus.com/bid/72842Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2513-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2514-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2515-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2516-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2517-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2518-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1186448Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/f3747379accba8e95d70cec0eae0582c8c182050Patch, Third Party Advisory
Timeline
- Published
- Mar 2, 2015
- Last modified
- Jun 17, 2026
- NVD status
- Modified