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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200705-10">
<title>LibXfont, TightVNC: Multiple vulnerabilities</title>
Multiple vulnerabilities have been reported in libXfont and TightVNC,
allowing for the execution of arbitrary code with root privileges.
<product type="ebuild">tightvnc, libxfont</product>
<announced>May 08, 2007</announced>
<revised>May 08, 2007: 01</revised>
<package name="net-misc/tightvnc" auto="yes" arch="*">
<unaffected range="ge">1.2.9-r4</unaffected>
<vulnerable range="lt">1.2.9-r4</vulnerable>
<package name="x11-libs/libXfont" auto="yes" arch="*">
<unaffected range="ge">1.2.7-r1</unaffected>
<vulnerable range="lt">1.2.7-r1</vulnerable>
LibXfont is the X.Org font library. TightVNC is a VNC client/server for
X displays.
The libXfont code is prone to several integer overflows, in functions
ProcXCMiscGetXIDList(), bdfReadCharacters() and FontFileInitTable().
TightVNC contains a local copy of this code and is also affected.
<impact type="high">
A local attacker could use a specially crafted BDF Font to gain root
privileges on the vulnerable host.
There is no known workaround at this time.
All libXfont users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=x11-libs/libXfont-1.2.7-r1&quot;</code>
All TightVNC users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-misc/tightvnc-1.2.9-r4&quot;</code>
<uri link="">CVE-2007-1003</uri>
<uri link="">CVE-2007-1351</uri>
<uri link="">CVE-2007-1352</uri>
<metadata tag="requester" timestamp="Tue, 17 Apr 2007 09:12:59 +0000">
<metadata tag="bugReady" timestamp="Mon, 23 Apr 2007 12:11:04 +0000">
<metadata tag="submitter" timestamp="Thu, 26 Apr 2007 19:02:32 +0000">