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Debian Security Advisory DSA-1657-1                  security@debian.org
http://www.debian.org/security/                               Steve Kemp
October 20, 2008                      http://www.debian.org/security/faq
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Package        : qemu
Vulnerability  : insecure temporary files
Problem type   : local
Debian-specific: no
CVE Id(s)      : CVE-2008-4553
Debian Bug     : 496394

Dmitry E. Oboukhov discovered that the qemu-make-debian-root script in qemu,
fast processor emulator, creates temporary files insecurely, which may lead
to a local denial of service through symlink attacks.

For the stable distribution (etch), this problem has been fixed in
version 0.8.2-4etch2.

For the testing (lenny) and unstable distribution (sid), this problem has
been fixed in version 0.9.1-6.

We recommend that you upgrade your qemu 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/q/qemu/qemu_0.8.2-4etch2.dsc
    Size/MD5 checksum:     1130 fd503742c9e3e64be60f8ff265f05edc
  http://security.debian.org/pool/updates/main/q/qemu/qemu_0.8.2.orig.tar.gz
    Size/MD5 checksum:  1501979 312eebc1386cca2e9b30a40763ab9c0d
  http://security.debian.org/pool/updates/main/q/qemu/qemu_0.8.2-4etch2.diff.gz
    Size/MD5 checksum:    65528 6b47c99fa9e0e99e4af47d5417bc497b

amd64 architecture (AMD x86_64 (AMD64))

  qemu_0.8.2-4etch2_amd64.deb
    Size/MD5 checksum:  3697974 1e88b4385a82864d386fe57608c8617a

i386 architecture (Intel ia32)

  qemu_0.8.2-4etch2_i386.deb
    Size/MD5 checksum:  3676128 cd73888cc1915af94792085994b946e3

powerpc architecture (PowerPC)

  qemu_0.8.2-4etch2_powerpc.deb
    Size/MD5 checksum:  3578592 86133e0b1804cc53f78f8eb71779a337


  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-securitydists/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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