What is the severity of CVE-2009-4147?

CVE-2009-4147 is classified as a local privilege escalation vulnerability.

How do I fix CVE-2009-4147?

To mitigate CVE-2009-4147, you should upgrade to a patched version of FreeBSD beyond 8.0.

Who is affected by CVE-2009-4147?

CVE-2009-4147 affects users of FreeBSD versions 7.1 and 8.0.

What could happen if CVE-2009-4147 is exploited?

Exploitation of CVE-2009-4147 could allow local users to gain elevated privileges.

Is CVE-2009-4147 still a threat today?

While CVE-2009-4147 is a historical vulnerability, it remains a concern for systems still using affected FreeBSD versions.

Vulnerability/
CVE-2009-4147

high

7.2

CWE

264

2/12/2009

7/8/2024

CVE-2009-4147

First published: Wed Dec 02 2009(Updated: )

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.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
FreeBSD FreeBSD	=8.0
FreeBSD FreeBSD	=7.1

Remedy

http://people.freebsd.org/~cperciva/rtld.patch

Remedy

http://www.securitytracker.com/id?1023250

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2009-4147?
CVE-2009-4147 is classified as a local privilege escalation vulnerability.
How do I fix CVE-2009-4147?
To mitigate CVE-2009-4147, you should upgrade to a patched version of FreeBSD beyond 8.0.
Who is affected by CVE-2009-4147?
CVE-2009-4147 affects users of FreeBSD versions 7.1 and 8.0.
What could happen if CVE-2009-4147 is exploited?
Exploitation of CVE-2009-4147 could allow local users to gain elevated privileges.
Is CVE-2009-4147 still a threat today?
While CVE-2009-4147 is a historical vulnerability, it remains a concern for systems still using affected FreeBSD versions.

collector/nvd-historical
collector/nvd-index
agent/type
agent/softwarecombine
agent/remedy
collector/mitre-cve
source/MITRE
agent/severity
agent/author
agent/references
agent/weakness
agent/last-modified-date
agent/tags
agent/event
agent/description
agent/first-publish-date
agent/source
vendor/freebsd
canonical/freebsd freebsd
version/freebsd freebsd/8.0
version/freebsd freebsd/7.1

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.

Frequently Asked Questions

What is the severity of CVE-2009-4147?
CVE-2009-4147 is classified as a local privilege escalation vulnerability.
How do I fix CVE-2009-4147?
To mitigate CVE-2009-4147, you should upgrade to a patched version of FreeBSD beyond 8.0.
Who is affected by CVE-2009-4147?
CVE-2009-4147 affects users of FreeBSD versions 7.1 and 8.0.
What could happen if CVE-2009-4147 is exploited?
Exploitation of CVE-2009-4147 could allow local users to gain elevated privileges.
Is CVE-2009-4147 still a threat today?
While CVE-2009-4147 is a historical vulnerability, it remains a concern for systems still using affected FreeBSD versions.