CVE-2011-4060
First published: Tue Oct 18 2011(Updated: )
The runtime linker in QNX Neutrino RTOS 6.5.0 before Service Pack 1 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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QNX Neutrino RTOS | =6.5.0 |
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Reference Links
- http://www.nth-dimension.org.uk/pub/NDSA20110310.txt.asc
- http://www.securityfocus.com/archive/1/518659
- http://www.securityfocus.com/bid/46838
- http://www.osvdb.org/71784
- http://www.securityfocus.com/archive/1/516958
- http://securityreason.com/securityalert/8475
- http://www.qnx.com/developers/docs/6.5.0_sp1/index.jsp?topic=%2Fcom.qnx.doc.momentics_release_notes%2Frel_6.5.0_SP1.html
- http://www.qnx.com/developers/articles/rel_5189_46.html
Frequently Asked Questions
What is the severity of CVE-2011-4060?
The severity of CVE-2011-4060 is classified as high due to the potential for local users to overwrite files through a symlink attack.
How do I fix CVE-2011-4060?
To fix CVE-2011-4060, update to QNX Neutrino RTOS version 6.5.0 Service Pack 1 or later.
What vulnerability does CVE-2011-4060 exploit?
CVE-2011-4060 exploits improper handling of the LD_DEBUG_OUTPUT and LD_DEBUG environment variables in setuid programs.
Who is affected by CVE-2011-4060?
Local users on systems running QNX Neutrino RTOS 6.5.0 prior to Service Pack 1 are affected by CVE-2011-4060.
What type of attack is associated with CVE-2011-4060?
CVE-2011-4060 is associated with a symlink attack that allows file overwriting.
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