Articles / Debian: New xen-utils packa…

Debian: New xen-utils packages fix file truncation

Steve Kemp from the Debian Security Audit project discovered that xen-utils, a collection of XEN administrative tools, used temporary files insecurely within the xenmon tool allowing local users to truncate arbitrary files. Fixed packages are available from security.debian.org.
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Debian Security Advisory DSA 1395-1                  security@debian.org
http://www.debian.org/security/                               Steve Kemp
October 25th, 2007                    http://www.debian.org/security/faq
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Package        : xen-utils
Vulnerability  : insecure temporary files
Problem type   : local
Debian-specific: no
CVE Id(s)      : CVE-2007-3919
Debian Bug     : 447795


Steve Kemp from the Debian Security Audit project discovered that xen-utils,
a collection of XEN administrative tools, used temporary files insecurely
within the xenmon tool allowing local users to truncate arbitrary files.

For the stable distribution (etch) this problem has been fixed in version
3.0.3-0-4.

For the old stable distribution (sarge) this package was not present.

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

We recommend that you upgrade your xen-3.0 (3.0.3-0-4) 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 4.0 alias etch
- --------------------------------

Source archives:

 http://security.debian.org/pool/updates/main/x/xen-3.0/xen-3.0_3.0.3-0.orig.tar.gz
   Size/MD5 checksum:  6127238 71257a2d977a601594c70c9eac0a121b
 http://security.debian.org/pool/updates/main/x/xen-3.0/xen-3.0_3.0.3-0-4.dsc
   Size/MD5 checksum:     1107 9aaf5bf33920673789b8b74e2ecd9e6e
 http://security.debian.org/pool/updates/main/x/xen-3.0/xen-3.0_3.0.3-0-4.diff.gz
   Size/MD5 checksum:    29265 c74760e053d31133c5fdf346690a53c0

Architecture independent packages:

 http://security.debian.org/pool/updates/main/x/xen-3.0/xen-docs-3.0_3.0.3-0-4_all.deb
   Size/MD5 checksum:   533424 88d27d762a7148cdce99a72535107c63

amd64 architecture (AMD x86_64 (AMD64))

 http://security.debian.org/pool/updates/main/x/xen-3.0/xen-utils-3.0.3-1_3.0.3-0-4_amd64.deb
   Size/MD5 checksum:   365688 bd9812950fa970847a076938c32055da
 http://security.debian.org/pool/updates/main/x/xen-3.0/xen-hypervisor-3.0.3-1-amd64_3.0.3-0-4_amd64.deb
   Size/MD5 checksum:   270154 df8969438463aa3a003f6dd4fb257125
 http://security.debian.org/pool/updates/main/x/xen-3.0/xen-ioemu-3.0.3-1_3.0.3-0-4_amd64.deb
   Size/MD5 checksum:   330978 d70e88b68bb0b8f1a8dbe17bec6bf2a4

i386 architecture (Intel ia32)

 http://security.debian.org/pool/updates/main/x/xen-3.0/xen-utils-3.0.3-1_3.0.3-0-4_i386.deb
   Size/MD5 checksum:   349816 6d1ae523449ca20d0ebd0eb52d9b2e59
 http://security.debian.org/pool/updates/main/x/xen-3.0/xen-hypervisor-3.0.3-1-i386_3.0.3-0-4_i386.deb
   Size/MD5 checksum:   248516 7742820766a6b9d1b6fd3ce68f2dd162
 http://security.debian.org/pool/updates/main/x/xen-3.0/xen-hypervisor-3.0.3-1-i386-pae_3.0.3-0-4_i386.deb
   Size/MD5 checksum:   269058 1ae056e97944833d690efd4951e627c2
 http://security.debian.org/pool/updates/main/x/xen-3.0/xen-ioemu-3.0.3-1_3.0.3-0-4_i386.deb
   Size/MD5 checksum:   316968 ea0b46058b45188db6488a386d494868


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

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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 ' and http://packages.debian.org/
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