National Cyber-Alert System
Vulnerability Summary for CVE-2006-4124
Original release date:08/14/2006
Last revised:09/10/2008
Source:
US-CERT/NIST
Overview
The libXm library in LessTif 0.95.0 and earlier allows local users to gain privileges via the DEBUG_FILE environment variable, which is used to create world-writable files when libXm is run from a setuid program.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.4
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Provides user account access, Allows partial confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service
- Official Statement from Red Hat (08/16/2006)
-
LessTif is shipped with Red Hat Enterprise Linux 2.1 but not 3 or 4. On Enterprise Linux 2.1 we build LessTif with debugging disabled, so the DEBUG_FILE environment variable is ignored and this issue cannot be exploited.
References to Advisories, Solutions, and Tools
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External Source: XF
Name: lestif-libxm-privilege-escalation(28298)
External Source: BID
Name: 19430
External Source: VUPEN
Name: ADV-2006-3230
Type: Advisory
External Source: SECUNIA
Name: 21428
Type: Advisory
External Source: MISC
Name: http://karol.wiesek.pl/files/lesstif-advisory.pdf
Type: Advisory
External Source: MILW0RM
Name: 2144