DSA-1011-1 kernel-patch-vserver -- missing attribute support

Debian Security Advisory

DSA-1011-1 kernel-patch-vserver -- missing attribute support

Date Reported:

21 Mar 2005

Affected Packages:

kernel-patch-vserver, util-vserver

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 329087, Bug 329090.
In Mitre's CVE dictionary: CVE-2005-4347, CVE-2005-4418.

More information:

Several vulnerabilities have been discovered in the Debian vserver support for Linux. The Common Vulnerabilities and Exposures project identifies the following problems:

• CVE-2005-4347

  Bjørn Steinbrink discovered that the chroot barrier is not set correctly with util-vserver which may result in unauthorised escapes from a vserver to the host system.

  This vulnerability is limited to the 2.4 kernel patch included in kernel-patch-vserver. The correction to this problem requires updating the util-vserver package as well and installing a new kernel built from the updated kernel-patch-vserver package.

• CVE-2005-4418

  The default policy of util-vserver is set to trust all unknown capabilities instead of considering them as insecure.

The old stable distribution (woody) does not contain a kernel-patch-vserver package.

For the stable distribution (sarge) this problem has been fixed in version 1.9.5.5 of kernel-patch-vserver and in version 0.30.204-5sarge3 of util-vserver.

For the unstable distribution (sid) this problem has been fixed in version 2.3 of kernel-patch-vserver and in version 0.30.208-1 of util-vserver.

We recommend that you upgrade your util-vserver and kernel-patch-vserver packages and build a new kernel immediately.

Fixed in:

Debian GNU/Linux 3.1 (sarge)

Source:

http://security.debian.org/pool/updates/main/k/kernel-patch-vserver/kernel-patch-vserver_1.9.5.5.dsc

http://security.debian.org/pool/updates/main/k/kernel-patch-vserver/kernel-patch-vserver_1.9.5.5.tar.gz

http://security.debian.org/pool/updates/main/u/util-vserver/util-vserver_0.30.204-5sarge3.dsc

http://security.debian.org/pool/updates/main/u/util-vserver/util-vserver_0.30.204-5sarge3.diff.gz

http://security.debian.org/pool/updates/main/u/util-vserver/util-vserver_0.30.204.orig.tar.gz

Architecture-independent component:

http://security.debian.org/pool/updates/main/k/kernel-patch-vserver/kernel-patch-vserver_1.9.5.5_all.deb

Alpha:

http://security.debian.org/pool/updates/main/u/util-vserver/util-vserver_0.30.204-5sarge3_alpha.deb

AMD64:

http://security.debian.org/pool/updates/main/u/util-vserver/util-vserver_0.30.204-5sarge3_amd64.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/u/util-vserver/util-vserver_0.30.204-5sarge3_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/u/util-vserver/util-vserver_0.30.204-5sarge3_ia64.deb

Big endian MIPS:

http://security.debian.org/pool/updates/main/u/util-vserver/util-vserver_0.30.204-5sarge3_mips.deb

Little endian MIPS:

http://security.debian.org/pool/updates/main/u/util-vserver/util-vserver_0.30.204-5sarge3_mipsel.deb

PowerPC:

http://security.debian.org/pool/updates/main/u/util-vserver/util-vserver_0.30.204-5sarge3_powerpc.deb

IBM S/390:

http://security.debian.org/pool/updates/main/u/util-vserver/util-vserver_0.30.204-5sarge3_s390.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/u/util-vserver/util-vserver_0.30.204-5sarge3_sparc.deb

MD5 checksums of the listed files are available in the original advisory.