| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200903-12"> |
| <title>OptiPNG: User-assisted execution of arbitrary code</title> |
| <synopsis> |
| A vulnerability in OptiPNG might result in user-assisted execution of |
| arbitrary code. |
| </synopsis> |
| <product type="ebuild">optipng</product> |
| <announced>March 09, 2009</announced> |
| <revised>March 09, 2009: 01</revised> |
| <bug>260265</bug> |
| <access>remote</access> |
| <affected> |
| <package name="media-gfx/optipng" auto="yes" arch="*"> |
| <unaffected range="ge">0.6.2-r1</unaffected> |
| <vulnerable range="lt">0.6.2-r1</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| OptiPNG is a PNG optimizer that recompresses image files to a smaller |
| size, without losing any information. |
| </p> |
| </background> |
| <description> |
| <p> |
| Roy Tam reported a use-after-free vulnerability in the |
| GIFReadNextExtension() function in lib/pngxtern/gif/gifread.c leading |
| to a memory corruption when reading a GIF image. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p> |
| A remote attacker could entice a user to process a specially crafted |
| GIF image, possibly resulting in the execution of arbitrary code with |
| the privileges of the user running the application, or a Denial of |
| Service. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| There is no known workaround at this time. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All OptiPNG users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=media-gfx/optipng-0.6.2-r1"</code> |
| </resolution> |
| <references> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0749">CVE-2009-0749</uri> |
| </references> |
| <metadata tag="requester" timestamp="Sat, 07 Mar 2009 16:36:48 +0000"> |
| rbu |
| </metadata> |
| <metadata tag="submitter" timestamp="Sat, 07 Mar 2009 18:09:51 +0000"> |
| rbu |
| </metadata> |
| <metadata tag="bugReady" timestamp="Sat, 07 Mar 2009 18:10:05 +0000"> |
| rbu |
| </metadata> |
| </glsa> |