National Cyber-Alert System
Vulnerability Summary for CVE-2006-1542
Original release date:03/30/2006
Last revised:01/23/2009
Source:
US-CERT/NIST
Overview
Stack-based buffer overflow in Python 2.4.2 and earlier, running on Linux 2.6.12.5 under gcc 4.0.3 with libc 2.3.5, allows local users to cause a "stack overflow," and possibly gain privileges, by running a script from a current working directory that has a long name, related to the realpath function. NOTE: this might not be a vulnerability. However, the fact that it appears in a programming language interpreter could mean that some applications are affected, although attack scenarios might be limited because the attacker might already need to cross privilege boundaries to cause an exploitable program to be placed in a directory with a long name; or, depending on the method that Python uses to determine the current working directory, setuid applications might be affected.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.4
Exploitability Subscore:
1.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: High
Authentication: Not required to exploit
Impact Type:Provides unauthorized access, Allows partial confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service
Solution
Successful exploitation requires that the Python is running on Linux 2.6.12.5 under gcc 4.0.3 with libc 2.3.5}
- Official Statement from Red Hat (03/14/2007)
-
Red Hat is aware of this issue and is tracking it via the following bug:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=187900
The Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw. More information regarding issue severity can be found here:
http://www.redhat.com/security/updates/classification/
Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.
References to Advisories, Solutions, and Tools
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External Source: REDHAT
Name: RHSA-2008:0629
External Source: MISC
Name: http://www.gotfault.net/research/exploit/gexp-python.py
External Source: SECUNIA
Name: 31492
External Source: MILW0RM
Name: 1591
