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>> Python "repr()" Function Unicode String Handling Buffer Overflow Vulnerability

Title : Python "repr()" Function Unicode String Handling Buffer Overflow Vulnerability
VUPEN ID : VUPEN/ADV-2006-3940
CVE ID : CVE-2006-4980
Rated as : Moderate Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2006-10-07


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A vulnerability has been identified in Python, which could be exploited by attackers to execute arbitrary commands. This flaw is due to a buffer overflow error in the "repr()" function that does not properly handle UTF32/UCS-4 encoded strings, which could be exploited by attackers to compromise a system via applications that use the vulnerable function.

Affected Products

Python versions 2.x

Solution

Upgrade to Python version 2.5 :
http://svn.python.org/view/

References

http://www.vupen.com/english/advisories/2006/3940
http://sourceforge.net/tracker/index.php?func=detail&aid=1541585&group_id=5470&atid=305470

Credits

Vulnerability reported by Benjamin C. Wiley Sittler

ChangeLog

2006-10-07 : Initial release
2006-10-12 : Updated Solution

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