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GNU Binutils libbfd TekHex Record Handling Vulnerability
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Secunia Advisory:
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SA20188
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Release Date:
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2006-05-23
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Popularity:
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7,350 views
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Critical:
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Moderately critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | GNU Binutils 2.x
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| CVE reference: | CVE-2006-2362
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Description:
Jesús Olmos Gonzalez has reported a vulnerability in GNU Binutils, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially to compromise a vulnerable system.
The vulnerability is caused due to an error in "bfd/tekhex.c" of the libbfd library when processing a specially crafted file that contains a Tektronix Hex Format (TekHex) record that contains a length value which is not a valid hexadecimal character. This can be exploited to cause a buffer overflow via a specially crafted file.
Successful exploitation crashes an application that uses the library (e.g. strings) and may allow arbitrary code execution.
The vulnerability has been reported in version 2.16.1. Other versions may also be affected.
Solution:
Do not use the library to process files from untrusted sources.
Provided and/or discovered by:
Jesús Olmos Gonzalez
Original Advisory:
http://sourceware.org/bugzilla/show_bug.cgi?id=2584
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