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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200410-26">
<title>socat: Format string vulnerability</title>
<synopsis>
socat contains a format string vulnerability that can potentially lead to
remote or local execution of arbitrary code with the privileges of the
socat process.
</synopsis>
<product type="ebuild">socat</product>
<announced>October 25, 2004</announced>
<revised>May 22, 2006: 02</revised>
<bug>68547</bug>
<access>remote</access>
<affected>
<package name="net-misc/socat" auto="yes" arch="*">
<unaffected range="ge">1.4.0.3</unaffected>
<vulnerable range="lt">1.4.0.3</vulnerable>
</package>
</affected>
<background>
<p>
socat is a multipurpose bidirectional relay, similar to netcat.
</p>
</background>
<description>
<p>
socat contains a syslog() based format string vulnerablility in the
'_msg()' function of 'error.c'. Exploitation of this bug is only
possible when socat is run with the '-ly' option, causing it to log
messages to syslog.
</p>
</description>
<impact type="normal">
<p>
Remote exploitation is possible when socat is used as a HTTP proxy
client and connects to a malicious server. Local privilege escalation
can be achieved when socat listens on a UNIX domain socket. Potential
execution of arbitrary code with the privileges of the socat process is
possible with both local and remote exploitations.
</p>
</impact>
<workaround>
<p>
Disable logging to syslog by not using the '-ly' option when starting
socat.
</p>
</workaround>
<resolution>
<p>
All socat users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-misc/socat-1.4.0.3&quot;</code>
</resolution>
<references>
<uri link="http://www.dest-unreach.org/socat/advisory/socat-adv-1.html">socat Security Advisory</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1484">CVE-2004-1484</uri>
</references>
<metadata tag="requester" timestamp="Sat, 23 Oct 2004 13:12:08 +0000">
vorlon078
</metadata>
<metadata tag="bugReady" timestamp="Sat, 23 Oct 2004 13:30:23 +0000">
koon
</metadata>
<metadata tag="submitter" timestamp="Sun, 24 Oct 2004 21:38:40 +0000">
lewk
</metadata>
</glsa>