| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200702-12"> |
| <title>CHMlib: User-assisted remote execution of arbitrary code</title> |
| <synopsis> |
| A memory corruption vulnerability in CHMlib could lead to the remote |
| execution of arbitrary code. |
| </synopsis> |
| <product type="ebuild">CHMlib</product> |
| <announced>February 27, 2007</announced> |
| <revised>May 20, 2008: 02</revised> |
| <bug>163989</bug> |
| <access>remote</access> |
| <affected> |
| <package name="dev-libs/chmlib" auto="yes" arch="*"> |
| <unaffected range="ge">0.39</unaffected> |
| <vulnerable range="lt">0.39</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| CHMlib is a library for the MS CHM (Compressed HTML) file format plus |
| extracting and HTTP server utils. |
| </p> |
| </background> |
| <description> |
| <p> |
| When certain CHM files that contain tables and objects stored in pages |
| are parsed by CHMlib, an unsanitized value is passed to the alloca() |
| function resulting in a shift of the stack pointer to arbitrary memory |
| locations. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p> |
| An attacker could entice a user to open a specially crafted CHM file, |
| resulting in the execution of arbitrary code with the permissions of |
| the user viewing the file. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| There is no known workaround at this time. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All CHMlib users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=dev-libs/chmlib-0.39"</code> |
| </resolution> |
| <references> |
| <uri link="http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=468">Original Advisory</uri> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0619">CVE-2007-0619</uri> |
| </references> |
| <metadata tag="requester" timestamp="Sat, 10 Feb 2007 21:22:08 +0000"> |
| falco |
| </metadata> |
| <metadata tag="bugReady" timestamp="Sat, 10 Feb 2007 23:53:10 +0000"> |
| falco |
| </metadata> |
| <metadata tag="submitter" timestamp="Tue, 13 Feb 2007 11:35:38 +0000"> |
| daxomatic |
| </metadata> |
| </glsa> |