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Last updated: 7/31/2014 5:39:34 PM

CVE Publication rate: 19.6

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National Cyber Awareness System

Vulnerability Summary for CVE-2013-2851

Original release date: 06/07/2013
Last revised: 03/26/2014
Source: US-CERT/NIST

Overview

Format string vulnerability in the register_disk function in block/genhd.c in the Linux kernel through 3.9.4 allows local users to gain privileges by leveraging root access and writing format string specifiers to /sys/module/md_mod/parameters/new_array in order to create a crafted /dev/md device name.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 6.0 (MEDIUM) (AV:L/AC:H/Au:S/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 1.5
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: High
Authentication: Required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: SUSE
Name: SUSE-SU-2013:1474
External Source: UBUNTU
Name: USN-1941-1
External Source: UBUNTU
Name: USN-1913-1
External Source: REDHAT
Name: RHSA-2013:1783
External Source: SUSE
Name: openSUSE-SU-2013:1971
External Source: SUSE
Name: SUSE-SU-2013:1473
External Source: UBUNTU
Name: USN-1912-1
External Source: UBUNTU
Name: USN-1942-1
External Source: MLIST
Name: [oss-security] 20130606 Linux kernel format string flaws
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=969515
Type: Advisory
External Source: DEBIAN
Name: DSA-2766
External Source: MLIST
Name: [linux-kernel] 20130606 [PATCH 1/8] block: do not pass disk names as format strings
External Source: REDHAT
Name: RHSA-2013:1645
External Source: REDHAT
Name: RHSA-2014:0284

Technical Details

Vulnerability Type (View All)
  • Format String Vulnerability (CWE-134)