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HIGH · 7.2

CVE-2009-4147

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 ...

Vulnerability 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.

CVSS Score

7.2

HIGH

AV:L/AC:L/Au:N/C:C/I:C/A:C
Confidentiality
COMPLETE
Integrity
COMPLETE
Availability
COMPLETE

Affected Products

VendorProductVersions
FreebsdFreebsd7.1

Related Weaknesses (CWE)

CWE-264

References

FAQ

What is CVE-2009-4147?

CVE-2009-4147 is a vulnerability with a CVSS score of 7.2 (HIGH). 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 ...

How severe is CVE-2009-4147?

CVE-2009-4147 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2009-4147?

Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.