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Unscored severity · published Oct 2, 2014
CVE-2014-7155
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause…
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CVSS
1%
EPSS
No
On KEV
Description
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
7.0 · source: NVD
FE
Fedora · Fedoraproject
19; 20 · source: NVD
OP
Opensuse · Opensuse
12.3; 13.1 · source: NVD
XE
Xen · Xen
through 4.4.0; 3.0.2; 3.0.3; 3.0.4; 3.1.3; 3.1.4; +32 more · source: NVD
Affected product
DL
Debian Linux
Debian
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2014-7155
CVE.org
https://www.cve.org/CVERecord?id=CVE-2014-7155
Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html
Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html
secunia.com
http://secunia.com/advisories/61858
secunia.com
http://secunia.com/advisories/61890
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