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

CVE-2009-4147

CVE-2009-4147

Description

The _rtld function in the Run-Time Link-Editor (rtld) in libexec/rtld-elf/rtld.c in FreeBSD 7.1 and 8.0 does not clear the (1) LD_LIBMAP, (2) LD_LIBRARY_PATH, (3) LD_LIBMAP_DISABLE, (4) LD_DEBUG, and (5) LD_ELF_HINTS_PATH environment variables, which allows local users to gain privileges by executing a setuid or setguid program with a modified variable containing an untrusted search path that points to a Trojan horse library, different vectors than CVE-2009-4146.

AI Insight

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

Affected products

3
  • FreeBSD/FreeBSD3 versions
    cpe:2.3:o:freebsd:freebsd:7.1:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:freebsd:freebsd:7.1:*:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:8.0:*:*:*:*:*:*:*
    • (no CPE)range: 7.1 and 8.0

Patches

Vulnerability mechanics

References

7

News mentions

0

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