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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200410-08">
<title>ncompress: Buffer overflow</title>
<synopsis>
compress and uncompress, which could be used by daemon programs, contain a
buffer overflow that could lead to remote execution of arbitrary code with
the rights of the daemon process.
</synopsis>
<product type="ebuild">ncompress</product>
<announced>October 09, 2004</announced>
<revised>May 22, 2006: 02</revised>
<bug>66251</bug>
<access>remote</access>
<affected>
<package name="app-arch/ncompress" auto="yes" arch="*">
<unaffected range="ge">4.2.4-r1</unaffected>
<vulnerable range="le">4.2.4</vulnerable>
</package>
</affected>
<background>
<p>
ncompress is a utility handling compression and decompression of
Lempel-Ziv archives, compatible with the original *nix compress and
uncompress utilities (.Z extensions).
</p>
</background>
<description>
<p>
compress and uncompress do not properly check bounds on command line
options, including the filename. Large parameters would trigger a
buffer overflow.
</p>
</description>
<impact type="normal">
<p>
By supplying a carefully crafted filename or other option, an attacker
could execute arbitrary code on the system. A local attacker could only
execute code with his own rights, but since compress and uncompress are
called by various daemon programs, this might also allow a remote
attacker to execute code with the rights of the daemon making use of
ncompress.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All ncompress users should upgrade to the latest version:
</p>
<code>
# emerge sync
# emerge -pv &quot;&gt;=app-arch/ncompress-4.2.4-r1&quot;
# emerge &quot;&gt;=app-arch/ncompress-4.2.4-r1&quot;</code>
</resolution>
<references>
<uri link="http://www.kb.cert.org/vuls/id/176363">US-CERT Vulnerability Note VU#176363</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2001-1413">CVE-2001-1413</uri>
</references>
<metadata tag="requester" timestamp="Fri, 8 Oct 2004 21:09:39 +0000">
koon
</metadata>
<metadata tag="bugReady" timestamp="Fri, 8 Oct 2004 21:11:15 +0000">
koon
</metadata>
<metadata tag="submitter" timestamp="Sat, 9 Oct 2004 10:24:20 +0000">
koon
</metadata>
</glsa>