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Unrated severityNVD Advisory· Published Dec 2, 2009· Updated Jun 16, 2026

CVE-2009-4146

CVE-2009-4146

Description

The _rtld function in the Run-Time Link-Editor (rtld) in libexec/rtld-elf/rtld.c in FreeBSD 7.1, 7.2, and 8.0 does not clear the LD_PRELOAD environment variable, which allows local users to gain privileges by executing a setuid or setguid program with a modified LD_PRELOAD variable containing an untrusted search path that points to a Trojan horse library, a different vector than CVE-2009-4147.

AI Insight

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

Affected products

4
  • FreeBSD/FreeBSD4 versions
    cpe:2.3:o:freebsd:freebsd:7.1:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:o:freebsd:freebsd:7.1:*:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:7.2:*:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:8.0:*:*:*:*:*:*:*
    • (no CPE)range: 7.1, 7.2, 8.0

Patches

Vulnerability mechanics

References

8

News mentions

0

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