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Last updated: 10/22/2014 9:57:31 AM

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Vulnerability Summary for CVE-2010-3847

Original release date: 01/07/2011
Last revised: 03/07/2011
Source: US-CERT/NIST

Overview

elf/dl-load.c in ld.so in the GNU C Library (aka glibc or libc6) through 2.11.2, and 2.12.x through 2.12.1, does not properly handle a value of $ORIGIN for the LD_AUDIT environment variable, which allows local users to gain privileges via a crafted dynamic shared object (DSO) located in an arbitrary directory.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 6.9 (MEDIUM) (AV:L/AC:M/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
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: SECUNIA
Name: 42787
Type: Advisory
US-CERT Vulnerability Note: CERT-VN
Name: VU#537223
External Source: MLIST
Name: [libc-hacker] 20101018 [PATCH] Never expand $ORIGIN in privileged programs
Type: Patch Information
External Source: CONFIRM
Name: http://support.avaya.com/css/P8/documents/100120941
External Source: FULLDISC
Name: 20101020 Re: The GNU C library dynamic linker expands $ORIGIN in setuid library search path
External Source: BID
Name: 44154
External Source: REDHAT
Name: RHSA-2010:0872
External Source: REDHAT
Name: RHSA-2010:0787
External Source: DEBIAN
Name: DSA-2122
External Source: CONFIRM
Name: http://www.vmware.com/security/advisories/VMSA-2011-0001.html
External Source: FULLDISC
Name: 20101019 Re: The GNU C library dynamic linker expands $ORIGIN in setuid library search path
External Source: MANDRIVA
Name: MDVSA-2010:207
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=643306
Type: Patch Information
External Source: BUGTRAQ
Name: 20110105 VMSA-2011-0001 VMware ESX third party updates for Service Console packages glibc, sudo, and openldap
External Source: VUPEN
Name: ADV-2011-0025
Type: Advisory
External Source: FULLDISC
Name: 20101018 The GNU C library dynamic linker expands $ORIGIN in setuid library search path
External Source: UBUNTU
Name: USN-1009-1
External Source: GENTOO
Name: GLSA-201011-01

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