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81 lines
2.6 KiB
81 lines
2.6 KiB
13 years ago
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<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200602-08">
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<title>libtasn1, GNU TLS: Security flaw in DER decoding</title>
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<synopsis>
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A flaw in the parsing of Distinguished Encoding Rules (DER) has been
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discovered in libtasn1, potentially resulting in the execution of arbitrary
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code.
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</synopsis>
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<product type="ebuild">libtasn1</product>
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<announced>February 16, 2006</announced>
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<revised>February 16, 2006: 01</revised>
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<bug>122307</bug>
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<access>remote</access>
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<affected>
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<package name="dev-libs/libtasn1" auto="yes" arch="*">
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<unaffected range="ge">0.2.18</unaffected>
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<vulnerable range="lt">0.2.18</vulnerable>
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</package>
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<package name="net-libs/gnutls" auto="yes" arch="*">
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<unaffected range="ge">1.2.10</unaffected>
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<vulnerable range="lt">1.2.10</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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Libtasn1 is a library used to parse ASN.1 (Abstract Syntax
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Notation One) objects, and perform DER (Distinguished Encoding Rules)
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decoding. Libtasn1 is included with the GNU TLS library, which is used
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by applications to provide a cryptographically secure communications
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channel.
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</p>
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</background>
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<description>
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<p>
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Evgeny Legerov has reported a flaw in the DER decoding routines
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provided by libtasn1, which could cause an out of bounds access to
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occur.
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</p>
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</description>
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<impact type="high">
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<p>
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A remote attacker could cause an application using libtasn1 to
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crash and potentially execute arbitrary code by sending specially
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crafted input.
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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 libtasn1 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 ">=dev-libs/libtasn1-0.2.18"</code>
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<p>
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All GNU TLS 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-libs/gnutls-1.2.10"</code>
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</resolution>
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<references>
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<uri link="http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0645">CVE-2006-0645</uri>
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</references>
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<metadata tag="requester" timestamp="Mon, 13 Feb 2006 20:11:10 +0000">
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koon
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</metadata>
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<metadata tag="bugReady" timestamp="Mon, 13 Feb 2006 20:11:49 +0000">
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koon
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</metadata>
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<metadata tag="submitter" timestamp="Tue, 14 Feb 2006 22:53:09 +0000">
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taviso
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</metadata>
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</glsa>
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