National Vulnerability Database (NVD) National Vulnerability Database (CVE-2012-2119)

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NVD is the U.S. government repository of standards based vulnerability management data. This data enables automation of vulnerability management, security measurement, and compliance (e.g. FISMA).

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NVD contains:

CVE Vulnerabilities: 55243
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Last updated: Thu Feb 28 06:35:41 EST 2013

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Vulnerability Summary for CVE-2012-2119

Original release date:01/22/2013

Last revised:01/29/2013

Source: US-CERT/NIST

Overview

Buffer overflow in the macvtap device driver in the Linux kernel before 3.4.5, when running in certain configurations, allows privileged KVM guest users to cause a denial of service (crash) via a long descriptor with a long vector length.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:5.2 (MEDIUM) (AV:A/AC:M/Au:S/C:N/I:N/A:C) (legend)

Impact Subscore: 6.9

Exploitability Subscore: 4.4

CVSS Version 2 Metrics:

Access Vector: Local network exploitable

Access Complexity: Medium

Authentication: Required to exploit

Impact Type:Allows disruption of serviceUnknown

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External Source: CONFIRM

Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b92946e2919134ebe2a4083e4302236295ea2a73

Type: Patch Information

Hyperlink:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b92946e2919134ebe2a4083e4302236295ea2a73

External Source: CONFIRM

Name: https://oss.oracle.com/git/?p=redpatch.git;a=commit;h=4aae94d1c7b32316911c86176c0ed4f8ed62da73

Hyperlink:https://oss.oracle.com/git/?p=redpatch.git;a=commit;h=4aae94d1c7b32316911c86176c0ed4f8ed62da73

External Source: CONFIRM

Name: https://github.com/torvalds/linux/commit/b92946e2919134ebe2a4083e4302236295ea2a73

Hyperlink:https://github.com/torvalds/linux/commit/b92946e2919134ebe2a4083e4302236295ea2a73

External Source: MLIST

Name: [oss-security] 20120419 Re: CVE request -- kernel: macvtap: zerocopy: vector length is not validated before pinning user pages