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58 lines
2.0 KiB
58 lines
2.0 KiB
<?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="201507-15">
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<title>OpenSSL: Alternate chains certificate forgery</title>
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<synopsis>Certain checks on untrusted certificates can be bypassed.</synopsis>
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<product type="ebuild">openssl</product>
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<announced>July 10, 2015</announced>
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<revised>July 10, 2015: draft</revised>
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<bug>554172</bug>
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<access>remote</access>
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<affected>
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<package name="dev-libs/openssl" auto="yes" arch="*">
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<unaffected range="ge">1.0.1p</unaffected>
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<unaffected range="rge">0.9.8z_p7</unaffected>
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<unaffected range="rge">0.9.8z_p6</unaffected>
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<vulnerable range="lt">1.0.1p</vulnerable>
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</package>
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</affected>
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<background>
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<p>OpenSSL is an Open Source toolkit implementing the Secure Sockets Layer
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(SSL v2/v3) and Transport Layer Security (TLS v1) as well as a general
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purpose cryptography library.
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</p>
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</background>
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<description>
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<p>During certificate verification, OpenSSL attempts to find an alternative
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certificate chain if the first attempt to build such a chain fails.
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</p>
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</description>
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<impact type="normal">
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<p>A remote attacker could cause certain checks on untrusted
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certificates to be bypassed, such as the CA flag, enabling them to use a
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valid leaf certificate to act as a CA and “issue” an invalid
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certificate.
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</p>
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</impact>
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<workaround>
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<p>There is no known workaround at this time.</p>
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</workaround>
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<resolution>
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<p>All OpenSSL users should upgrade to the latest version:</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=dev-libs/openssl-1.0.1p"
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</code>
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</resolution>
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<references>
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<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-1793">CVE-2015-1793</uri>
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</references>
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<metadata tag="requester" timestamp="Wed, 08 Jul 2015 09:20:30 +0000">
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keytoaster
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</metadata>
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<metadata tag="submitter" timestamp="Fri, 10 Jul 2015 13:18:57 +0000">
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keytoaster
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</metadata>
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</glsa> |