67 lines
2.1 KiB
XML
67 lines
2.1 KiB
XML
<?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="200503-12">
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<title>Hashcash: Format string vulnerability</title>
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<synopsis>
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A format string vulnerability in the Hashcash utility could allow an
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attacker to execute arbitrary code.
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</synopsis>
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<product type="ebuild">Hashcash</product>
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<announced>March 06, 2005</announced>
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<revised>May 22, 2006: 02</revised>
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<bug>83541</bug>
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<access>remote</access>
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<affected>
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<package name="net-misc/hashcash" auto="yes" arch="*">
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<unaffected range="ge">1.16-r1</unaffected>
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<vulnerable range="lt">1.16-r1</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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Hashcash is a utility for generating Hashcash tokens, a proof-of-work
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system to reduce the impact of spam.
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</p>
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</background>
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<description>
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<p>
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Tavis Ormandy of the Gentoo Linux Security Audit Team identified a flaw
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in the Hashcash utility that an attacker could expose by specifying a
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malformed reply address.
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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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Successful exploitation would permit an attacker to disrupt Hashcash
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users, and potentially execute arbitrary code.
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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 Hashcash 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/hashcash-1.16-r1"</code>
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</resolution>
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<references>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0687">CVE-2005-0687</uri>
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</references>
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<metadata tag="requester" timestamp="Wed, 2 Mar 2005 21:44:06 +0000">
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koon
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</metadata>
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<metadata tag="submitter" timestamp="Wed, 2 Mar 2005 22:42:04 +0000">
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taviso
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</metadata>
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<metadata tag="bugReady" timestamp="Sun, 6 Mar 2005 10:00:09 +0000">
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koon
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</metadata>
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</glsa>
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