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Libxml2 "xmlCurrentChar()" UTF-8 Parsing Denial of Service Vulnerability


Title : Libxml2 "xmlCurrentChar()" UTF-8 Parsing Denial of Service Vulnerability
Advisory ID : FrSIRT/ADV-2008-0117
CVE ID : CVE-2007-6284
Rated as : Low Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2008-01-14

Advisory Details

 
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  Affected Products
  Solution
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A vulnerability has been identified in Libxml2, which could be exploited by attackers to cause a denial of service. This issue is caused by infinite loop errors in the "xmlCurrentChar()" [parserInternals.c] function when parsing certain UTF-8 sequences, which could be exploited to create a denial of service condition via specially crafted XML data.

Credits

Vulnerability reported by Brad Fitzpatrick (Google).

ChangeLog

2008-01-14 : Initial release

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