Vulnerability in Freebsd
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 (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.
EPSS: 0.037 (88.6th percentile) — read the EPSS interpretation.
Affected products
- Freebsd — versions 7.1, 8.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, vdb-entry, x_refsource_BID)
- cve@mitre.org (mailing-list, x_refsource_BUGTRAQ)
- cve@mitre.org (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- cve@mitre.org (x_refsource_CONFIRM, Patch)
- cve@mitre.org (mailing-list, x_refsource_BUGTRAQ)
- cve@mitre.org (Patch, vdb-entry, x_refsource_SECTRACK)
- cve@mitre.org (x_refsource_MISC)
Frequently asked questions
- What is CVE-2009-4147?
- CVE-2009-4147 is a vulnerability in Freebsd, classified under CWE-264. Published 2009-12-02.
- Is CVE-2009-4147 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.