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Last updated: 2/28/2015 2:03:44 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2011-4060

Original release date: 10/17/2011
Last revised: 02/13/2012


The runtime linker in QNX Neutrino RTOS 6.5.0 does not properly clear the LD_DEBUG_OUTPUT and LD_DEBUG environment variables when a program is spawned from a setuid program, which allows local users to overwrite files via a symlink attack.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 3.3 (LOW) (AV:L/AC:M/Au:N/C:N/I:P/A:P) (legend)
Impact Subscore: 4.9
Exploitability Subscore: 3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized modification; Allows disruption of service

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External Source: OSVDB
Name: 71784
External Source: BUGTRAQ
Name: 20110629 Breaking the links: Exploiting the linker
External Source: BID
Name: 46838
External Source: SREASON
Name: 8475
External Source: BUGTRAQ
Name: 20110311 Medium severity flaw in QNX Neutrino RTOS
External Source: MISC
Name: http://www.nth-dimension.org.uk/pub/NDSA20110310.txt.asc

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/o:qnx:neutrino_rtos:6.5.0

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

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