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105 lines
3.9 KiB
105 lines
3.9 KiB
13 years ago
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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="200804-27">
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<title>SILC: Multiple vulnerabilities</title>
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<synopsis>
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Multiple vulnerabilities were found in SILC Client, Server, and Toolkit,
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allowing for Denial of Service and execution of arbitrary code.
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</synopsis>
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<product type="ebuild">silc-toolkit silc-client silc-server</product>
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<announced>April 24, 2008</announced>
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<revised>April 24, 2008: 01</revised>
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<bug>212362</bug>
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<bug>214116</bug>
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<bug>214812</bug>
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<access>remote</access>
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<affected>
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<package name="net-im/silc-toolkit" auto="yes" arch="*">
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<unaffected range="ge">1.1.7</unaffected>
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<vulnerable range="lt">1.1.7</vulnerable>
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</package>
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<package name="net-im/silc-client" auto="yes" arch="*">
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<unaffected range="ge">1.1.4</unaffected>
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<vulnerable range="lt">1.1.4</vulnerable>
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</package>
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<package name="net-im/silc-server" auto="yes" arch="*">
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<unaffected range="ge">1.1.2</unaffected>
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<vulnerable range="lt">1.1.2</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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SILC (Secure Internet Live Conferencing protocol) Toolkit is a software
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development kit for use in clients, SILC Server is a communication
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server, and SILC Client is an IRSSI-based text client.
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</p>
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</background>
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<description>
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<ul>
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<li>Nathan G. Grennan reported a boundary error in SILC Toolkit
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within the silc_fingerprint() function in the file
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lib/silcutil/silcutil.c when passing overly long data, resulting in a
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stack-based buffer overflow (CVE-2008-1227).</li>
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<li>A vulnerability
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has been reported in SILC Server which is caused due to an error in the
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handling of "NEW_CLIENT" packets that do not contain a nickname
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(CVE-2008-1429).</li>
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<li>Ariel Waissbein, Pedro Varangot, Martin
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Mizrahi, Oren Isacson, Carlos Garcia, and Ivan Arce of Core Security
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Technologies reported that SILC Client, Server, and Toolkit contain a
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vulnerability in the silc_pkcs1_decode() function in the silccrypt
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library (silcpkcs1.c), resulting in an integer underflow, signedness
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error, and a buffer overflow (CVE-2008-1552).</li>
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</ul>
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</description>
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<impact type="normal">
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<p>
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A remote attacker could exploit these vulnerabilities to cause a Denial
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of Service or execute arbitrary code with the privileges of the user
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running the application.
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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 SILC Toolkit 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-im/silc-toolkit-1.1.7"</code>
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<p>
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All SILC Client 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-im/silc-client-1.1.4"</code>
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<p>
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All SILC Server 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-im/silc-server-1.1.2"</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-2008-1227">CVE-2008-1227</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1429">CVE-2008-1429</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1552">CVE-2008-1552</uri>
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</references>
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<metadata tag="requester" timestamp="Fri, 21 Mar 2008 02:19:53 +0000">
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rbu
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</metadata>
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<metadata tag="bugReady" timestamp="Thu, 03 Apr 2008 14:49:27 +0000">
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rbu
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</metadata>
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<metadata tag="submitter" timestamp="Wed, 23 Apr 2008 16:41:55 +0000">
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keytoaster
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</metadata>
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</glsa>
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