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72 lines
2.3 KiB
72 lines
2.3 KiB
13 years ago
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<?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="200512-18">
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<title>XnView: Privilege escalation</title>
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<synopsis>
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XnView may search for shared libraries in an untrusted location,
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potentially allowing local users to execute arbitrary code with the
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privileges of another user.
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</synopsis>
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<product type="ebuild">xnview</product>
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<announced>December 30, 2005</announced>
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<revised>May 22, 2006: 02</revised>
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<bug>117063</bug>
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<access>local</access>
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<affected>
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<package name="x11-misc/xnview" auto="yes" arch="x86">
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<unaffected range="ge">1.70-r1</unaffected>
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<vulnerable range="lt">1.70-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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XnView is an efficient multimedia viewer, browser and converter,
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distributed free for non-commercial use.
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</p>
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</background>
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<description>
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<p>
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Krzysiek Pawlik of Gentoo Linux discovered that the XnView package for
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IA32 used the DT_RPATH field insecurely, causing the dynamic loader to
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search for shared libraries in potentially untrusted directories.
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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 local attacker could create a malicious shared object that would be
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loaded and executed when a user attempted to use an XnView utility.
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This would allow a malicious user to effectively hijack XnView and
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execute arbitrary code with the privileges of the user running the
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program.
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</p>
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</impact>
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<workaround>
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<p>
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The system administrator may use the chrpath utility to remove the
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DT_RPATH field from the XnView utilities:
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</p>
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<code>
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# emerge app-admin/chrpath
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# chrpath --delete /opt/bin/nconvert /opt/bin/nview /opt/bin/xnview</code>
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</workaround>
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<resolution>
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<p>
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All XnView users on the x86 platform should upgrade to the latest
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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 ">=x11-misc/xnview-1.70-r1"</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=CVE-2005-4595">CVE-2005-4595</uri>
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</references>
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<metadata tag="submitter" timestamp="Thu, 29 Dec 2005 17:05:23 +0000">
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taviso
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</metadata>
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<metadata tag="bugReady" timestamp="Fri, 30 Dec 2005 12:33:06 +0000">
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koon
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</metadata>
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</glsa>
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