Unrated severityNVD Advisory· Published Nov 29, 2006· Updated Jun 16, 2026

CVE-2006-6164

Description

The _dl_unsetenv function in loader.c in the ELF ld.so in OpenBSD 3.9 and 4.0 does not properly remove duplicate environment variables, which allows local users to pass dangerous variables such as LD_PRELOAD to loading processes, which might be leveraged to gain privileges.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

OpenBSD/OpenBSD3 versions
cpe:2.3:o:openbsd:openbsd:3.9:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:openbsd:openbsd:3.9:*:*:*:*:*:*:*
- cpe:2.3:o:openbsd:openbsd:4.0:*:*:*:*:*:*:*
- (no CPE)range: 3.9, 4.0

Patches

Vulnerability mechanics

References

securitytracker.com/idnvdPatch
www.openbsd.org/errata.htmlnvdPatch
www.openbsd.org/errata39.htmlnvdPatch
secunia.com/advisories/22993nvd
www.matasano.com/log/592/finger-79tcp-mcdonald-dowd-and-schuh-challenge-part-2/nvd
www.securityfocus.com/archive/1/452371/100/0/threadednvd
www.securityfocus.com/archive/1/452428/100/0/threadednvd
www.securityfocus.com/bid/21188nvd
exchange.xforce.ibmcloud.com/vulnerabilities/30441nvd

News mentions

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