CVE-2012-3495 : Detail

CVE-2012-3495

A03-Injection
0.06%V3
Local
2012-11-23
19h00 +00:00
2017-06-30
14h57 +00:00
CVE.org
NVD
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CVE Descriptions

The physdev_get_free_pirq hypercall in arch/x86/physdev.c in Xen 4.1.x and Citrix XenServer 6.0.2 and earlier uses the return value of the get_free_pirq function as an array index without checking that the return value indicates an error, which allows guest OS users to cause a denial of service (invalid memory write and host crash) and possibly gain privileges via unspecified vectors.

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.

Metrics

Metrics Score Severity CVSS Vector Source
V2 6.1 AV:L/AC:L/Au:N/C:P/I:P/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

Citrix>>Xenserver >> Version To (including) 6.0.2

Citrix>>Xenserver >> Version 5.0

Citrix>>Xenserver >> Version 5.5

Citrix>>Xenserver >> Version 5.6

Citrix>>Xenserver >> Version 5.6

Citrix>>Xenserver >> Version 5.6

Citrix>>Xenserver >> Version 6.0

Xen>>Xen >> Version 4.1.0

Xen>>Xen >> Version 4.1.1

Xen>>Xen >> Version 4.1.2

Xen>>Xen >> Version 4.1.3

References

http://secunia.com/advisories/55082
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/51413
Tags : third-party-advisory, x_refsource_SECUNIA
http://security.gentoo.org/glsa/glsa-201309-24.xml
Tags : vendor-advisory, x_refsource_GENTOO
http://www.securityfocus.com/bid/55406
Tags : vdb-entry, x_refsource_BID
http://www.securitytracker.com/id?1027480
Tags : vdb-entry, x_refsource_SECTRACK
https://security.gentoo.org/glsa/201604-03
Tags : vendor-advisory, x_refsource_GENTOO
http://www.openwall.com/lists/oss-security/2012/09/05/6
Tags : mailing-list, x_refsource_MLIST