CVE-2015-0239

Published: Mar 2, 2015Modified: May 6, 2026

4.4

Vector

AV:L/AC:M/Au:N/C:P/I:P/A:P

Exploitability: 3.4 / Impact: 6.4

Source: NVD

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.

Affected (11)

Products: Linux: Linux Kernel · Canonical: Ubuntu Linux · Debian: Debian Linux · +2 more

Show all products

Linux: Linux Kernel · Canonical: Ubuntu Linux · Debian: Debian Linux · Oracle: Linux · Redhat: Enterprise Linux Desktop, Enterprise Linux Server, Enterprise Linux Workstation

1 product

1 product

1 product

1 product

3 products

Enterprise Linux Desktop

Enterprise Linux Server

Enterprise Linux Workstation

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Before 3.18.5

Configuration B

3 vulnerable

Vulnerable Software	Affected Versions
Canonical Ubuntu Linux	Version 12.04
Canonical Ubuntu Linux	Version 14.04
Canonical Ubuntu Linux	Version 14.10

Configuration C

2 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 7.0
Debian Debian Linux	Version 8.0

Configuration D

2 vulnerable

Vulnerable Software	Affected Versions
Oracle Linux	Version 5
Oracle Linux	Version 7

Configuration E

3 vulnerable

Vulnerable Software	Affected Versions
Redhat Enterprise Linux Desktop	Version 6.0
Redhat Enterprise Linux Server	Version 6.0
Redhat Enterprise Linux Workstation	Version 6.0

Related CWEs

CWE-269

Improper Privilege Management

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

References (36)

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f3747379accba8e95d70cec0eae0582c8c182050

Source: secalert@redhat.com

http://permalink.gmane.org/gmane.linux.kernel.commits.head/502245

Source: secalert@redhat.com

Broken Link

http://rhn.redhat.com/errata/RHSA-2015-1272.html

Source: secalert@redhat.com

Third Party Advisory

http://www.debian.org/security/2015/dsa-3170

Source: secalert@redhat.com

Third Party Advisory

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5

Source: secalert@redhat.com

Release NotesVendor Advisory

http://www.mandriva.com/security/advisories?name=MDVSA-2015:058

Source: secalert@redhat.com

Third Party Advisory

http://www.openwall.com/lists/oss-security/2015/01/27/6

Source: secalert@redhat.com

ExploitMailing ListThird Party Advisory

http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html

Source: secalert@redhat.com

Third Party Advisory

http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

Source: secalert@redhat.com

Third Party Advisory

http://www.securityfocus.com/bid/72842

Source: secalert@redhat.com

Third Party AdvisoryVDB Entry

http://www.ubuntu.com/usn/USN-2513-1

Source: secalert@redhat.com

Third Party Advisory

http://www.ubuntu.com/usn/USN-2514-1

Source: secalert@redhat.com

Third Party Advisory

http://www.ubuntu.com/usn/USN-2515-1

Source: secalert@redhat.com

Third Party Advisory

http://www.ubuntu.com/usn/USN-2516-1

Source: secalert@redhat.com

Third Party Advisory

http://www.ubuntu.com/usn/USN-2517-1

Source: secalert@redhat.com

Third Party Advisory

http://www.ubuntu.com/usn/USN-2518-1

Source: secalert@redhat.com

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1186448

Source: secalert@redhat.com

Issue TrackingThird Party Advisory

https://github.com/torvalds/linux/commit/f3747379accba8e95d70cec0eae0582c8c182050

Source: secalert@redhat.com

PatchThird Party Advisory

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f3747379accba8e95d70cec0eae0582c8c182050