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Hancom Office 2010 SE Buffer Overflow

Hancom Office 2010 SE Buffer Overflow
Posted Dec 19, 2013
Authored by diroverflow

Hancom Office 2010 SE suffers from a buffer overflow vulnerability when parsing the TEXTART tag in .hml files. Version 8.5.8 is vulnerable.

tags | advisory, overflow
MD5 | a17b81a09985939af395d0a0470cba80

Hancom Office 2010 SE Buffer Overflow

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There is a vulnerability in Hancom Office 2010 SE, which can be exploited by malicious people to compromise a user's system.
'.hml' is a type of XML document files which is defined by Hancom. Contructing a long TEXTART tag will cause a heap-based buffer overflow. Such as:

<TEXTART Text="AAAAAAAA...(more than 500 bytes)" X0="0" X1="14173" X2="14173" X3="0" Y0="0" Y1="0" Y2="14173" Y3="14173">

Successful exploitation of the vulnerabilities may allow execution of arbitrary code.The vulnerabilities are confirmed in version 8.5.8. Other versions may also be affected.
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