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GNU Enscript Multiple Vulnerabilities
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Secunia Advisory:
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SA13968
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Release Date:
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2005-01-25
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Popularity:
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6,268 views
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Critical:
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Moderately critical
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Impact:
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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 Enscript 1.x
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| CVE reference: | CVE-2004-1184
CVE-2004-1185
CVE-2004-1186
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Description:
Erik Sjölund has reported some vulnerabilities in GNU Enscript, which potentially can be exploited by malicious people to compromise a vulnerable system.
1) Improper behaviour, where EPS data can be read from an arbitrary command pipe, can be exploited to execute arbitrary commands via an external application invoking GNU Enscript (e.g. ViewCVS).
2) An input validation error in the handling of filenames can be exploited to inject arbitrary shell commands via an external application invoking GNU Enscript.
3) Some boundary errors in "util.c" and "src/psgen.c" can be exploited to cause buffer overflows via a malicious input file with the privileges of the user running GNU Enscript.
Solution:
Do not invoke GNU Enscript from an external application where input is not properly sanitised. Do not convert untrusted input files.
Provided and/or discovered by:
Erik Sjölund
Original Advisory:
http://www.ubuntulinux.org/support/documentation/usn/usn-68-1
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