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PROGENY LINUX SYSTEMS -- SECURITY ADVISORY PROGENY-SA-2001-08
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Topic: Local root vulnerability in sendfiled
Software: sendfile
Announced: 2001-04-19
Credits: Colin Phipps <cphippsat_private>
Daniel Kobras
Ulli Horlacher <framstagat_private-stuttgart.de>
Martin Schulze <joeyat_private>
Affects: Progeny Debian (sendfile prior to 2.1-24)
Debian GNU/Linux potato (sendfile prior to 2.1-20.2)
Debian GNU/Linux woody/sid (sendfile prior to 2.1-24)
Vendor-Status: New Version Released (sendfile 2.1-24)
Corrected: 2001-04-20
Progeny Only: NO
$Id: PROGENY-SA-2001-08,v 1.2 2001/04/20 18:05:01 jgoerzen Exp $
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DESCRIPTION
Local users on a system may be able to exploit security flaws in
sendfiled to obtain root privileges.
SOLUTION (See also: UPDATING VIA APT-GET)
Upgrade to a fixed version of sendfile. sendfile version 2.1-24
corrects the problem. For your convenience, you may upgrade to the
sendfile_2.1-24 package.
WORKAROUND
sendfile may not be a vital system utility in every installation. If
you prefer, you can remove rather than upgrade sendfile. To remove
it, use this command:
dpkg --remove sendfile
UPDATING VIA APT-GET
1. Ensure that your /etc/apt/sources.list file has a URI for Progeny's
update repository:
deb http://archive.progeny.com/progeny updates/newton/
2. Update your cache of available packages for apt(8).
Example:
# apt-get update
3. Using apt(8), install the new package. apt(8) will download the
update, verify its integrity with md5, and then install the
package on your system with dpkg(8).
Example:
# apt-get install sendfile
UPDATING VIA DPKG
1. Using your preferred FTP/HTTP client to retrieve the following
updated files from Progeny's update archive at:
http://archive.progeny.com/progeny/updates/newton/
MD5 Checksum Filename
-------------------------------- -------------------------------------
903eef59cc9253d6d732326eafe9c307 sendfile_2.1-24_i386.deb
Example:
# wget \
http://archive.progeny.com/progeny/updates/newton/sendfile_2.1-24_i386.deb
2. Use the md5sum command on the retrieved files to verify that they
match the md5sum provided in this advisory:
Example:
# md5sum sendfile_2.1-24_i386.deb
3. Then install the replacement package(s) using the dpkg command.
Example:
# dpkg --install sendfile_2.1-24_i386.deb
MORE INFORMATION
This issue was first documented at bug #74068 in the Debian GNU/Linux
bug tracking system. Information on this bug report is available at
http://bugs.debian.org/76048.
Progeny advisories can be found at http://www.progeny.com/security/.
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pub 1024D/F92D4D1F 2001-04-04 Progeny Security Team <securityat_private>
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This archive was generated by hypermail 2b30 : Sun Apr 22 2001 - 14:11:06 PDT