<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="200806-04"> <title>rdesktop: Multiple vulnerabilities</title> <synopsis> Multiple vulnerabilities in rdesktop may lead to the execution of arbitrary code or a Denial of Service. </synopsis> <product type="ebuild">rdesktop</product> <announced>2008-06-14</announced> <revised count="01">2008-06-14</revised> <bug>220911</bug> <access>remote</access> <affected> <package name="net-misc/rdesktop" auto="yes" arch="*"> <unaffected range="ge">1.6.0</unaffected> <vulnerable range="lt">1.6.0</vulnerable> </package> </affected> <background> <p> rdesktop is an open source Remote Desktop Protocol (RDP) client. </p> </background> <description> <p> An anonymous researcher reported multiple vulnerabilities in rdesktop via iDefense Labs: </p> <ul> <li>An integer underflow error exists in the function iso_recv_msg() in the file iso.c which can be triggered via a specially crafted RDP request, causing a heap-based buffer overflow (CVE-2008-1801).</li> <li>An input validation error exists in the function process_redirect_pdu() in the file rdp.c which can be triggered via a specially crafted RDP redirect request, causing a BSS-based buffer overflow (CVE-2008-1802).</li> <li> An integer signedness error exists in the function xrealloc() in the file rdesktop.c which can be be exploited to cause a heap-based buffer overflow (CVE-2008-1803).</li> </ul> </description> <impact type="normal"> <p> An attacker could exploit these vulnerabilities by enticing a user to connect to a malicious RDP server thereby allowing the attacker to execute arbitrary code or cause a Denial of Service. </p> </impact> <workaround> <p> There is no known workaround at this time. </p> </workaround> <resolution> <p> All rdesktop users should upgrade to the latest version: </p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/rdesktop-1.6.0"</code> </resolution> <references> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1801">CVE-2008-1801</uri> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1802">CVE-2008-1802</uri> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1803">CVE-2008-1803</uri> </references> <metadata tag="requester" timestamp="2008-05-19T15:23:05Z"> keytoaster </metadata> <metadata tag="bugReady" timestamp="2008-06-03T15:21:36Z"> vorlon </metadata> <metadata tag="submitter" timestamp="2008-06-07T15:00:31Z"> mfleming </metadata> </glsa>