Unscored severity · published Mar 2, 2015
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…
–
CVSS
0.6%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 3.18.5 · source: NVD
DL
Debian Linux · Debian
7.0; 8.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
6.0 · source: NVD
EL
Enterprise Linux Server · Redhat
6.0 · source: NVD
EL
Enterprise Linux Workstation · Redhat
6.0 · source: NVD
LI
Linux · Oracle
5; 7 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 14.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-0239
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-0239
git.kernel.org
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f3747379accba8e95d70cec0eae0582c8c182050
Broken Link
http://permalink.gmane.org/gmane.linux.kernel.commits.head/502245
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1272.html
Third Party Advisory
http://www.debian.org/security/2015/dsa-3170
Release Notes
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5
Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2015:058
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