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65 lines
2.1 KiB
65 lines
2.1 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="200311-04">
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<title>FreeRADIUS: heap exploit and NULL pointer dereference vulnerability</title>
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<synopsis>
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FreeRADIUS is vulnerable to a heap exploit and a NULL pointer dereference
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vulnerability.
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</synopsis>
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<product type="ebuild">FreeRADIUS</product>
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<announced>2003-11-23</announced>
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<revised count="01">2003-11-23</revised>
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<bug>33989</bug>
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<access>remote</access>
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<affected>
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<package name="net-dialup/freeradius" auto="yes" arch="*">
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<unaffected range="ge">0.9.3</unaffected>
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<vulnerable range="le">0.9.2</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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FreeRADIUS is a popular open source RADIUS server.
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</p>
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</background>
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<description>
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<p>
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FreeRADIUS versions below 0.9.3 are vulnerable to a heap exploit, however,
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the attack code must be in the form of a valid RADIUS packet which limits
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the possible exploits.
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</p>
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<p>
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Also corrected in the 0.9.3 release is another vulnerability which causes
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the RADIUS server to de-reference a NULL pointer and crash when an
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Access-Request packet with a Tunnel-Password is received.
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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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A remote attacker could craft a RADIUS packet which would cause the RADIUS
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server to crash, or could possibly overflow the heap resulting in a system
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compromise.
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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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Users are encouraged to perform an 'emerge sync' and upgrade the package to
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the latest available version - 0.9.3 is available in portage and is marked
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as stable.
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</p>
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<code>
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# emerge sync
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# emerge -pv '>=net-dialup/freeradius-0.9.3'
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# emerge '>=net-dialup/freeradius-0.9.3'
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# emerge clean</code>
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</resolution>
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<references>
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<uri link="http://www.securitytracker.com/alerts/2003/Nov/1008263.html">SecurityTracker.com Security Alert</uri>
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</references>
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</glsa>
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