CVE-2015-7835 : Detail

CVE-2015-7835

A03-InjectionA01-Broken Access Control
0.06%V3
Local
2015-10-30
14h00 +00:00
2017-06-30
14h57 +00:00
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CVE Descriptions

The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-20 Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
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 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C [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 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 4.3.2

Xen>>Xen >> Version 4.3.4

Xen>>Xen >> Version 4.4.0

Xen>>Xen >> Version 4.4.1

    Xen>>Xen >> Version 4.5.0

    Xen>>Xen >> Version 4.5.1

    Xen>>Xen >> Version 4.6.0

    References

    http://www.securityfocus.com/bid/77366
    Tags : vdb-entry, x_refsource_BID
    http://www.debian.org/security/2015/dsa-3390
    Tags : vendor-advisory, x_refsource_DEBIAN
    http://www.securitytracker.com/id/1034032
    Tags : vdb-entry, x_refsource_SECTRACK
    https://security.gentoo.org/glsa/201604-03
    Tags : vendor-advisory, x_refsource_GENTOO