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Vulnerability record · CVE-2011-4060 · published 18 October 2011

CVE-2011-4060: Qnx neutrino rtos link following vulnerability

Qnx · Neutrino Rtos

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.

3.3 CVSS 2.0 Low EPSS 0.30% · top 79.4% CWE-59 · Link following
3.3CVSS 2.0 base score
0.30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References
16 Jun 2026Last modified by NVD

Description

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.

AV:L/AC:M/Au:N/C:N/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://securityreason.com/securityalert/8475
http://www.nth-dimension.org.uk/pub/NDSA20110310.txt.asc
http://www.osvdb.org/71784
http://www.qnx.com/developers/articles/rel_5189_46.html
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.securityfocus.com/archive/1/516958
http://www.securityfocus.com/archive/1/518659
http://www.securityfocus.com/bid/46838
http://securityreason.com/securityalert/8475
http://www.nth-dimension.org.uk/pub/NDSA20110310.txt.asc
http://www.osvdb.org/71784
http://www.qnx.com/developers/articles/rel_5189_46.html
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.securityfocus.com/archive/1/516958
http://www.securityfocus.com/archive/1/518659
http://www.securityfocus.com/bid/46838

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Source: NIST National Vulnerability Database (record CVE-2011-4060), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.