| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200806-09"> |
| <title>libvorbis: Multiple vulnerabilities</title> |
| <synopsis> |
| Multiple vulnerabilities in libvorbis might lead to the execution of |
| arbitrary code. |
| </synopsis> |
| <product type="ebuild">libvorbis</product> |
| <announced>June 23, 2008</announced> |
| <revised>June 23, 2008: 02</revised> |
| <bug>222085</bug> |
| <access>remote</access> |
| <affected> |
| <package name="media-libs/libvorbis" auto="yes" arch="*"> |
| <unaffected range="ge">1.2.1_rc1</unaffected> |
| <vulnerable range="lt">1.2.1_rc1</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| libvorbis is the reference implementation of the Xiph.org Ogg Vorbis |
| audio file format. It is used by many applications for playback of Ogg |
| Vorbis files. |
| </p> |
| </background> |
| <description> |
| <p> |
| Will Drewry of the Google Security Team reported multiple |
| vulnerabilities in libvorbis: |
| </p> |
| <ul> |
| <li> |
| A zero value for "codebook.dim" is not properly handled, leading to a |
| crash, infinite loop or triggering an integer overflow |
| (CVE-2008-1419). |
| </li> |
| <li> |
| An integer overflow in "residue partition value" evaluation might lead |
| to a heap-based buffer overflow (CVE-2008-1420). |
| </li> |
| <li> |
| An integer overflow in a certain "quantvals" and "quantlist" |
| calculation might lead to a heap-based buffer overflow |
| (CVE-2008-1423). |
| </li> |
| </ul> |
| </description> |
| <impact type="normal"> |
| <p> |
| A remote attacker could exploit these vulnerabilities by enticing a |
| user to open a specially crafted Ogg Vorbis file or network stream with |
| an application using libvorbis. This might lead to the execution of |
| arbitrary code with the privileges of the user playing the file or a |
| Denial of Service by a crash or CPU consumption. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| There is no known workaround at this time. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All libvorbis users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=media-libs/libvorbis-1.2.1_rc1"</code> |
| </resolution> |
| <references> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1419">CVE-2008-1419</uri> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1420">CVE-2008-1420</uri> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1423">CVE-2008-1423</uri> |
| </references> |
| <metadata tag="requester" timestamp="Mon, 16 Jun 2008 22:45:51 +0000"> |
| rbu |
| </metadata> |
| <metadata tag="submitter" timestamp="Mon, 16 Jun 2008 23:30:07 +0000"> |
| rbu |
| </metadata> |
| <metadata tag="bugReady" timestamp="Mon, 16 Jun 2008 23:30:17 +0000"> |
| rbu |
| </metadata> |
| </glsa> |