| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200410-25"> |
| <title>Netatalk: Insecure tempfile handling in etc2ps.sh</title> |
| <synopsis> |
| The etc2ps.sh script, included in the Netatalk package, is vulnerable to |
| symlink attacks, potentially allowing a local user to overwrite arbitrary |
| files with the rights of the user running the utility. |
| </synopsis> |
| <product type="ebuild">Netatalk</product> |
| <announced>October 25, 2004</announced> |
| <revised>October 25, 2004: 01</revised> |
| <bug>66370</bug> |
| <access>local</access> |
| <affected> |
| <package name="net-fs/netatalk" auto="yes" arch="*"> |
| <unaffected range="ge">1.6.4-r1</unaffected> |
| <vulnerable range="lt">1.6.4-r1</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| Netatalk is a kernel level implementation of the AppleTalk Protocol Suite, |
| which allows Unix hosts to act as file, print, and time servers for Apple |
| computers. It includes several script utilities, including etc2ps.sh. |
| </p> |
| </background> |
| <description> |
| <p> |
| The etc2ps.sh script creates temporary files in world-writeable directories |
| with predictable names. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p> |
| A local attacker could create symbolic links in the temporary files |
| directory, pointing to a valid file somewhere on the filesystem. When |
| etc2ps.sh is executed, this would result in the file being overwritten with |
| the rights of the user running the utility, which could be the root user. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| There is no known workaround at this time. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All Netatalk users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge sync |
| |
| # emerge -pv ">=net-fs/netatalk-1.6.4-r1" |
| # emerge ">=net-fs/netatalk-1.6.4-r1"</code> |
| </resolution> |
| <references> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0974">CAN-2004-0974</uri> |
| </references> |
| <metadata tag="submitter" timestamp="Sun, 10 Oct 2004 22:02:01 +0000"> |
| lewk |
| </metadata> |
| <metadata tag="bugReady" timestamp="Mon, 25 Oct 2004 13:03:51 +0000"> |
| koon |
| </metadata> |
| </glsa> |