67 lines
2.4 KiB
XML
67 lines
2.4 KiB
XML
<?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="200504-04">
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<title>mit-krb5: Multiple buffer overflows in telnet client</title>
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<synopsis>
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The mit-krb5 telnet client is vulnerable to two buffer overflows, which
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could allow a malicious telnet server operator to execute arbitrary code.
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</synopsis>
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<product type="ebuild">telnet</product>
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<announced>April 06, 2005</announced>
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<revised>April 06, 2005: 01</revised>
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<bug>87145</bug>
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<access>remote</access>
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<affected>
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<package name="app-crypt/mit-krb5" auto="yes" arch="*">
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<unaffected range="ge">1.3.6-r2</unaffected>
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<vulnerable range="lt">1.3.6-r2</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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The MIT Kerberos 5 implementation provides a command line telnet
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client which is used for remote login via the telnet protocol.
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</p>
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</background>
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<description>
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<p>
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A buffer overflow has been identified in the env_opt_add()
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function, where a response requiring excessive escaping can cause a
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heap-based buffer overflow. Another issue has been identified in the
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slc_add_reply() function, where a large number of SLC commands can
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overflow a fixed size buffer.
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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 require a vulnerable user to connect
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to an attacker-controlled telnet host, potentially executing arbitrary
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code with the permissions of the telnet user on the client.
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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 mit-krb5 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 ">=app-crypt/mit-krb5-1.3.6-r2"</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=CAN-2005-0468">CAN-2005-0468</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0469">CAN-2005-0469</uri>
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<uri link="http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2005-001-telnet.txt">MITKRB5-SA-2005-001</uri>
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</references>
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<metadata tag="submitter" timestamp="Fri, 1 Apr 2005 09:42:26 +0000">
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koon
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</metadata>
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<metadata tag="bugReady" timestamp="Wed, 6 Apr 2005 09:05:02 +0000">
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koon
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</metadata>
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</glsa>
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