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65 lines
2.0 KiB
65 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="200611-01">
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<title>Screen: UTF-8 character handling vulnerability</title>
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<synopsis>
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Screen contains an error in its UTF-8 character handling code that would
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allow a remote Denial of Service or possibly the remote execution of
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arbitrary code.
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</synopsis>
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<product type="ebuild">screen</product>
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<announced>2006-11-03</announced>
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<revised count="01">2006-11-03</revised>
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<bug>152770</bug>
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<access>remote</access>
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<affected>
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<package name="app-misc/screen" auto="yes" arch="*">
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<unaffected range="ge">4.0.3</unaffected>
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<vulnerable range="lt">4.0.3</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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Screen is a full-screen window manager that multiplexes a physical
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terminal between several processes, typically interactive shells.
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</p>
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</background>
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<description>
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<p>
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cstone and Richard Felker discovered a flaw in Screen's UTF-8 combining
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character handling.
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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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The vulnerability can be exploited by writing a special string of
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characters to a Screen window. A remote attacker could cause a Denial
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of Service or possibly execute arbitrary code with the privileges of
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the user running Screen through a program being run inside a Screen
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session, such as an IRC client or a mail 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 Screen 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-misc/screen-4.0.3"</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=CVE-2006-4573">CVE-2006-4573</uri>
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</references>
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<metadata tag="submitter" timestamp="2006-10-27T12:01:54Z">
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aetius
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</metadata>
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<metadata tag="bugReady" timestamp="2006-10-30T11:11:00Z">
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falco
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</metadata>
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</glsa>
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