Vulnerability in Freebsd
CVE-2009-4146
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.
EPSS: 0.039 (89.2th percentile) — read the EPSS interpretation.
Affected products
- Freebsd — versions 7.1, 7.2, 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, Exploit)
- cve@mitre.org (mailing-list, x_refsource_BUGTRAQ)
- cve@mitre.org (vdb-entry, x_refsource_SECTRACK)
- cve@mitre.org (mailing-list, x_refsource_BUGTRAQ)
- cve@mitre.org (x_refsource_MISC)
Frequently asked questions
- What is CVE-2009-4146?
- CVE-2009-4146 is a vulnerability in Freebsd, classified under CWE-264. Published 2009-12-02.
- Is CVE-2009-4146 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.