73 lines
2.6 KiB
XML
73 lines
2.6 KiB
XML
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<?xml version="1.0" encoding="utf-8"?>
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<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
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<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200502-28">
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<title>PuTTY: Remote code execution</title>
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<synopsis>
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PuTTY was found to contain vulnerabilities that can allow a malicious SFTP
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server to execute arbitrary code on unsuspecting PSCP and PSFTP clients.
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</synopsis>
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<product type="ebuild">Putty</product>
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<announced>February 21, 2005</announced>
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<revised>February 21, 2005: 01</revised>
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<bug>82753</bug>
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<access>remote</access>
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<affected>
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<package name="net-misc/putty" auto="yes" arch="*">
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<unaffected range="ge">0.57</unaffected>
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<vulnerable range="lt">0.57</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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PuTTY is a popular SSH client, PSCP is a secure copy
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implementation, and PSFTP is a SSH File Transfer Protocol client.
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</p>
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</background>
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<description>
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<p>
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Two vulnerabilities have been discovered in the PSCP and PSFTP
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clients, which can be triggered by the SFTP server itself. These issues
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are caused by the improper handling of the FXP_READDIR response, along
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with other string fields.
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</p>
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</description>
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<impact type="normal">
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<p>
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An attacker can setup a malicious SFTP server that would send
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these malformed responses to a client, potentially allowing the
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execution of arbitrary code on their system.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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</p>
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</workaround>
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<resolution>
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<p>
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All PuTTY users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=net-misc/putty-0.57"</code>
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</resolution>
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<references>
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<uri link="http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-sftp-readdir.html">PuTTY vulnerability vuln-sftp-readdir</uri>
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<uri link="http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-sftp-string.html">PuTTY vulnerability vuln-sftp-string</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0467">CAN-2005-0467</uri>
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<uri link="http://www.idefense.com/application/poi/display?id=201&type=vulnerabilities">iDEFENSE Advisory</uri>
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</references>
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<metadata tag="requester" timestamp="Mon, 21 Feb 2005 09:51:17 +0000">
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vorlon078
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</metadata>
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<metadata tag="bugReady" timestamp="Mon, 21 Feb 2005 09:52:44 +0000">
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vorlon078
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</metadata>
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<metadata tag="submitter" timestamp="Mon, 21 Feb 2005 13:42:55 +0000">
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lewk
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</metadata>
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</glsa>
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