| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200711-15"> |
| <title>FLAC: Buffer overflow</title> |
| <synopsis> |
| Multiple integer overflow vulnerabilities were found in FLAC possibly |
| allowing for the execution of arbitrary code. |
| </synopsis> |
| <product type="ebuild">flac</product> |
| <announced>November 12, 2007</announced> |
| <revised>November 12, 2007: 01</revised> |
| <bug>195700</bug> |
| <access>remote</access> |
| <affected> |
| <package name="media-libs/flac" auto="yes" arch="*"> |
| <unaffected range="ge">1.2.1-r1</unaffected> |
| <vulnerable range="lt">1.2.1-r1</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| The Xiph.org Free Lossless Audio Codec (FLAC) library is the reference |
| implementation of the FLAC audio file format. It contains encoders and |
| decoders in library and executable form. |
| </p> |
| </background> |
| <description> |
| <p> |
| Sean de Regge reported multiple integer overflows when processing FLAC |
| media files that could lead to improper memory allocations resulting in |
| heap-based buffer overflows. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p> |
| A remote attacker could entice a user to open a specially crafted FLAC |
| file or network stream with an application using FLAC. This might lead |
| to the execution of arbitrary code with privileges of the user playing |
| the file. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| There is no known workaround at this time. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All FLAC users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=media-libs/flac-1.2.1-r1"</code> |
| <p> |
| You should also run revdep-rebuild to rebuild any packages that depend |
| on older versions of FLAC: |
| </p> |
| <code> |
| # revdep-rebuild --library=libFLAC.*</code> |
| </resolution> |
| <references> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4619">CVE-2007-4619</uri> |
| </references> |
| <metadata tag="requester" timestamp="Thu, 01 Nov 2007 19:12:08 +0000"> |
| rbu |
| </metadata> |
| <metadata tag="submitter" timestamp="Fri, 02 Nov 2007 03:25:37 +0000"> |
| rbu |
| </metadata> |
| <metadata tag="bugReady" timestamp="Sat, 03 Nov 2007 23:19:45 +0000"> |
| rbu |
| </metadata> |
| </glsa> |