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Secunia Security Advisory 47022

Secunia Security Advisory 47022
Posted Dec 6, 2011
Authored by Secunia | Site secunia.com

Secunia Security Advisory - Kingcope has discovered a vulnerability in FreeBSD, which can be exploited by malicious people to compromise a vulnerable system.

tags | advisory
systems | freebsd
MD5 | 5545f24ed05a370933d5c5ad5bce25d7

Secunia Security Advisory 47022

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TITLE:
FreeBSD libc chroot Library Loading Vulnerability

SECUNIA ADVISORY ID:
SA47022

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/47022/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=47022

RELEASE DATE:
2011-12-06

DISCUSS ADVISORY:
http://secunia.com/advisories/47022/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
* Last Update
* Popularity
* Comments
* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)

http://secunia.com/advisories/47022/

ONLY AVAILABLE IN CUSTOMER AREA:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=47022

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
* AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Kingcope has discovered a vulnerability in FreeBSD, which can be
exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due libc loading certain libraries
dynamically. In combination with e.g. a FTP service (e.g. FreeBSD's
ftpd) running in a chroot, this can be exploited to execute arbitrary
code by uploading malicious libraries and then triggering libc to load
them.

The vulnerability is confirmed in FreeBSD 8.1. Other versions may
also be affected.

SOLUTION:
Restrict access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Kingcope

ORIGINAL ADVISORY:
Kingcope:
http://archives.neohapsis.com/archives/fulldisclosure/2011-12/0038.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

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