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71 lines
2.5 KiB
71 lines
2.5 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="200504-01">
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<title>telnet-bsd: Multiple buffer overflows</title>
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<synopsis>
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The telnet-bsd 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>2005-04-01</announced>
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<revised count="01">2005-04-01</revised>
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<bug>87019</bug>
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<access>remote</access>
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<affected>
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<package name="net-misc/telnet-bsd" auto="yes" arch="*">
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<unaffected range="ge">1.0-r1</unaffected>
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<vulnerable range="lt">1.0-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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telnet-bsd provides a command line telnet client which is used for
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remote login using 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 of telnet-bsd, where a response requiring excessive escaping
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can cause a heap-based buffer overflow. Another issue has been
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identified in the slc_add_reply() function, where a large number of SLC
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commands can 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 host using telnet, potentially executing
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arbitrary code with the permissions of the telnet user.
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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 telnet-bsd 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/telnet-bsd-1.0-r1"</code>
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</resolution>
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<references>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0468">CAN-2005-0468</uri>
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<uri link="http://www.idefense.com/application/poi/display?id=221&type=vulnerabilities">IDEF0867</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0469">CAN-2005-0469</uri>
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<uri link="http://www.idefense.com/application/poi/display?id=220&type=vulnerabilities">IDEF0866</uri>
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</references>
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<metadata tag="requester" timestamp="2005-03-29T16:15:13Z">
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koon
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</metadata>
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<metadata tag="submitter" timestamp="2005-03-29T17:09:56Z">
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taviso
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</metadata>
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<metadata tag="bugReady" timestamp="2005-03-31T06:01:07Z">
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jaervosz
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</metadata>
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</glsa>
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