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GNU Enscript "setfilename" and "font" Special Escape Buffer Overflows
Secunia Advisory: SA32137
Release Date: 2008-10-22
Last Update: 2008-11-04
Popularity: 3,040 views

Critical:
Moderately critical
Impact: System access
Where: From remote
Solution Status: Unpatched

Software:GNU Enscript 1.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Some vulnerabilities have been discovered in GNU Enscript, which can be exploited by malicious people to compromise a vulnerable system.

1) A vulnerability is caused due to a boundary error within the "read_special_escape()" function in src/psgen.c when processing the "setfilename" escape sequence. This can be exploited to cause a stack-based buffer overflow by tricking the user into converting a malicious file.

2) A vulnerability is caused due to a boundary error within the "read_special_escape()" function in src/psgen.c when processing the "font" escape sequence. This can be exploited to cause a stack-based buffer overflow by tricking the user into converting a malicious file.

Successful exploitation allows execution of arbitrary code, but requires that special escapes processing is enabled with the "-e" option.

The vulnerabilities are confirmed in versions 1.6.1 and 1.6.4 (beta). Other versions may also be affected.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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