CVE-2014-7155 : Detail

CVE-2014-7155

A01-Broken Access Control
0.06%V3
Adjacent Network
2014-10-02
12h00 +00:00
2016-12-30
15h57 +00:00
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CVE Descriptions

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.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-264 Category : Permissions, Privileges, and Access Controls
Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.

Metrics

Metrics Score Severity CVSS Vector Source
V2 5.8 AV:A/AC:L/Au:N/C:P/I:P/A:P [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Products Mentioned

Configuraton 0

Xen>>Xen >> Version To (including) 4.4.0

Xen>>Xen >> Version 3.0.2

Xen>>Xen >> Version 3.0.3

Xen>>Xen >> Version 3.0.4

Xen>>Xen >> Version 3.1.3

Xen>>Xen >> Version 3.1.4

Xen>>Xen >> Version 3.2.0

Xen>>Xen >> Version 3.2.1

Xen>>Xen >> Version 3.2.2

Xen>>Xen >> Version 3.2.3

Xen>>Xen >> Version 3.3.0

Xen>>Xen >> Version 3.3.1

Xen>>Xen >> Version 3.3.2

Xen>>Xen >> Version 3.4.0

Xen>>Xen >> Version 3.4.1

Xen>>Xen >> Version 3.4.2

Xen>>Xen >> Version 3.4.3

Xen>>Xen >> Version 3.4.4

Xen>>Xen >> Version 4.0.0

Xen>>Xen >> Version 4.0.1

Xen>>Xen >> Version 4.0.2

Xen>>Xen >> Version 4.0.3

Xen>>Xen >> Version 4.0.4

Xen>>Xen >> Version 4.1.0

Xen>>Xen >> Version 4.1.1

Xen>>Xen >> Version 4.1.2

Xen>>Xen >> Version 4.1.3

Xen>>Xen >> Version 4.1.4

Xen>>Xen >> Version 4.1.5

Xen>>Xen >> Version 4.1.6.1

Xen>>Xen >> Version 4.2.0

Xen>>Xen >> Version 4.2.1

Xen>>Xen >> Version 4.2.2

Xen>>Xen >> Version 4.2.3

Xen>>Xen >> Version 4.3.0

Xen>>Xen >> Version 4.3.1

Xen>>Xen >> Version 4.4.0

Xen>>Xen >> Version 4.4.0

Configuraton 0

Debian>>Debian_linux >> Version 7.0

Configuraton 0

Fedoraproject>>Fedora >> Version 19

Fedoraproject>>Fedora >> Version 20

Configuraton 0

Opensuse>>Opensuse >> Version 12.3

Opensuse>>Opensuse >> Version 13.1

References

http://www.securitytracker.com/id/1030888
Tags : vdb-entry, x_refsource_SECTRACK
http://www.debian.org/security/2014/dsa-3041
Tags : vendor-advisory, x_refsource_DEBIAN
http://secunia.com/advisories/61858
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/61890
Tags : third-party-advisory, x_refsource_SECUNIA
http://security.gentoo.org/glsa/glsa-201412-42.xml
Tags : vendor-advisory, x_refsource_GENTOO
http://www.securityfocus.com/bid/70057
Tags : vdb-entry, x_refsource_BID