CVE-2009-4147

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Summary

CVECVE-2009-4147
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-12-02 19:30:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionThe _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.

Risk And Classification

Primary CVSS: v2.0 7.2 from [email protected]

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

Problem Types: CWE-264 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Freebsd Freebsd 7.1 All All All
Operating System Freebsd Freebsd 8.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
FreeBSD Dynamic Linker Privilege Escalation Vulnerability - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
FreeBSD 'execl()' Local Privilege Escalation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Exploit
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
SecurityTracker.com Archives - FreeBSD rtld Lets Local Users Gain Root Privileges af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Patch
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
FreeBSD rtld execl() Privilege Escalation ≈ Packet Storm af854a3a-2127-422b-91ae-364da2661108 packetstormsecurity.com
people.freebsd.org/~cperciva/rtld.patch af854a3a-2127-422b-91ae-364da2661108 people.freebsd.org Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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