You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
2.5 KiB
72 lines
2.5 KiB
<?xml version="1.0" encoding="utf-8"?>
|
|
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
|
|
|
|
<glsa id="200410-29">
|
|
<title>PuTTY: Pre-authentication buffer overflow</title>
|
|
<synopsis>
|
|
PuTTY contains a vulnerability allowing an SSH server to execute arbitrary
|
|
code on the connecting client.
|
|
</synopsis>
|
|
<product type="ebuild">putty</product>
|
|
<announced>October 27, 2004</announced>
|
|
<revised>May 22, 2006: 02</revised>
|
|
<bug>69123</bug>
|
|
<access>remote</access>
|
|
<affected>
|
|
<package name="net-misc/putty" auto="yes" arch="*">
|
|
<unaffected range="ge">0.56</unaffected>
|
|
<vulnerable range="le">0.55</vulnerable>
|
|
</package>
|
|
</affected>
|
|
<background>
|
|
<p>
|
|
PuTTY is a free implementation of Telnet and SSH for Win32 and Unix
|
|
platforms, along with an xterm terminal emulator.
|
|
</p>
|
|
</background>
|
|
<description>
|
|
<p>
|
|
PuTTY fails to do proper bounds checking on SSH2_MSG_DEBUG packets. The
|
|
"stringlen" parameter value is incorrectly checked due to signedness
|
|
issues. Note that this vulnerability is similar to the one described in
|
|
GLSA 200408-04 but not the same.
|
|
</p>
|
|
</description>
|
|
<impact type="normal">
|
|
<p>
|
|
When PuTTY connects to a server using the SSH2 protocol, an attacker
|
|
may be able to send specially crafted packets to the client, resulting
|
|
in the execution of arbitrary code with the permissions of the user
|
|
running PuTTY. Note that this is possible during the authentication
|
|
process but before host key verification.
|
|
</p>
|
|
</impact>
|
|
<workaround>
|
|
<p>
|
|
There is no known workaround at this time.
|
|
</p>
|
|
</workaround>
|
|
<resolution>
|
|
<p>
|
|
All PuTTY users should upgrade to the latest version:
|
|
</p>
|
|
<code>
|
|
# emerge --sync
|
|
# emerge --ask --oneshot --verbose ">=net-misc/putty-0.56"</code>
|
|
</resolution>
|
|
<references>
|
|
<uri link="http://www.idefense.com/application/poi/display?id=155">iDEFENSE Security Advisory 10.27.04</uri>
|
|
<uri link="http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html">PuTTY ChangeLog</uri>
|
|
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1008">CVE-2004-1008</uri>
|
|
</references>
|
|
<metadata tag="requester" timestamp="Wed, 27 Oct 2004 15:40:45 +0000">
|
|
koon
|
|
</metadata>
|
|
<metadata tag="bugReady" timestamp="Wed, 27 Oct 2004 15:40:58 +0000">
|
|
koon
|
|
</metadata>
|
|
<metadata tag="submitter" timestamp="Wed, 27 Oct 2004 16:43:51 +0000">
|
|
jaervosz
|
|
</metadata>
|
|
</glsa>
|