CVE-2015-0239
Advisory lineage Upstream: 0 Downstream: 10
Modified
Published: 02 Mar 2015, 11:00
Last modified:06 Aug 2024, 04:03
Vulnerability Summary
Overall Risk (default)
medium
28/100 CVSS Score
4.4 MEDIUM
v2.0 (nvd)
EPSS Score
0.1% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected
Timeline
02 Mar 2015, 11:00
Published
Vulnerability first disclosed
06 Aug 2024, 04:03
Last Modified
Vulnerability information updated
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.
CVSS Metrics
- v2.0•MEDIUM•Score: 4.4AV:L/AC:M/Au:N/C:P/I:P/A:P
EPSS Trends
Current EPSS score: 0.10%• Percentile: 27%
Techniques & Countermeasures
- 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.
Affected Systems
- canonical•ubuntu_linux
12.04 | 14.04 | 14.10
- debian•debian_linux
7.0 | 8.0
- linux•linux_kernel
< 3.18.5
- oracle•linux
5 | 7
- redhat•enterprise_linux_desktop
6.0
- redhat•enterprise_linux_server
6.0
- redhat•enterprise_linux_workstation
6.0
References (18)
- 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