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dsa-509.txt

dsa-509.txt
Posted May 30, 2004
Authored by Matt Zimmerman | Site debian.org

Debian Security Advisory DSA 509-1 - Steve Kemp discovered a vulnerability in xatitv, one of the programs in the gatos package. If an administrator removes the default configuration file, a local attacker can escalate to root privileges.

tags | advisory, local, root
systems | linux, debian
advisories | CVE-2004-0395
SHA-256 | 3ce34d6d1e5e9badae4bd01e62d08cce72041031812e1163569eaca982b69ca5

dsa-509.txt

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Hash: SHA1

- --------------------------------------------------------------------------
Debian Security Advisory DSA 509-1 security@debian.org
http://www.debian.org/security/ Matt Zimmerman
May 29th, 2004 http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package : gatos
Vulnerability : privilege escalation
Problem-Type : local
Debian-specific: no
CVE Ids : CAN-2004-0395

Steve Kemp discovered a vulnerability in xatitv, one of the programs
in the gatos package, which is used to display video with certain
ATI video cards.

xatitv is installed setuid root in order to gain direct access to the
video hardware. It normally drops root privileges after successfully
initializing itself. However, if initialization fails due to a
missing configuration file, root privileges are not dropped, and
xatitv executes the system(3) function to launch its configuration
program without sanitizing user-supplied environment variables.

By exploiting this vulnerability, a local user could gain root
privileges if the configuration file does not exist. However, a
default configuration file is supplied with the package, and so this
vulnerability is not exploitable unless this file is removed by the
administrator.

For the current stable distribution (woody) this problem has been
fixed in version 0.0.5-6woody1.

For the unstable distribution (sid), this problem will be fixed soon.

We recommend that you update your gatos package.

Upgrade Instructions
- --------------------

wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
will update the internal database
apt-get upgrade
will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.

Debian GNU/Linux 3.0 alias woody
- --------------------------------

Source archives:

http://security.debian.org/pool/updates/main/g/gatos/gatos_0.0.5-6woody1.dsc
Size/MD5 checksum: 629 73d7637956bdcc827fb3c9be500902a0
http://security.debian.org/pool/updates/main/g/gatos/gatos_0.0.5-6woody1.diff.gz
Size/MD5 checksum: 40666 2ff18e9bbf71ea71ce9b2a43486c8cc6
http://security.debian.org/pool/updates/main/g/gatos/gatos_0.0.5.orig.tar.gz
Size/MD5 checksum: 483916 9c16631afc933bde6f5d5e1421efddb7

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/g/gatos/gatos_0.0.5-6woody1_i386.deb
Size/MD5 checksum: 176268 d64a2e508adbd6423c6a0bbf2426c11b
http://security.debian.org/pool/updates/main/g/gatos/libgatos-dev_0.0.5-6woody1_i386.deb
Size/MD5 checksum: 109416 81ada7ba7f2d0d44d2cf107154a2cd93
http://security.debian.org/pool/updates/main/g/gatos/libgatos0_0.0.5-6woody1_i386.deb
Size/MD5 checksum: 75040 4c2f9aea5082612027d520bab82dbff5

These files will probably be moved into the stable distribution on
its next revision.

- ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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