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Last updated: 9/1/2014 5:30:56 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2011-1658

Original release date: 04/08/2011
Last revised: 10/25/2011
Source: US-CERT/NIST

Overview

ld.so in the GNU C Library (aka glibc or libc6) 2.13 and earlier expands the $ORIGIN dynamic string token when RPATH is composed entirely of this token, which might allow local users to gain privileges by creating a hard link in an arbitrary directory to a (1) setuid or (2) setgid program with this RPATH value, and then executing the program with a crafted value for the LD_PRELOAD environment variable, a different vulnerability than CVE-2010-3847 and CVE-2011-0536. NOTE: it is not expected that any standard operating-system distribution would ship an applicable setuid or setgid program.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 3.7 (LOW) (AV:L/AC:H/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore: 6.4
Exploitability Subscore: 1.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: High
Authentication: Not 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: XF
Name: gnuclibrary-ldso-priv-esc(66820)
External Source: CONFIRM
Name: http://www.vmware.com/security/advisories/VMSA-2011-0012.html
External Source: MISC
Name: https://bugzilla.redhat.com/show_bug.cgi?id=667974
Type: Patch Information
External Source: SECUNIA
Name: 46397
External Source: BUGTRAQ
Name: 20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console
External Source: MISC
Name: http://sourceware.org/bugzilla/show_bug.cgi?id=12393
Type: Patch Information

Vulnerable software and versions

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Technical Details

Vulnerability Type (View All)
  • Permissions, Privileges, and Access Control (CWE-264)