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Debian: New qemu packages fix several vulnerabilities Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
Debian Several vulnerabilities have been discovered in the QEMU processor emulator, which may lead to the execution of arbitrary code or denial of service. The Common Vulnerabilities and Exposures project identifies the following problems.
- --------------------------------------------------------------------------
Debian Security Advisory DSA 1284-1                    security@debian.org
http://www.debian.org/security/                         Moritz Muehlenhoff
May 1st, 2007                           http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : qemu
Vulnerability  : several
Problem-Type   : local
Debian-specific: no
CVE ID         : CVE-2007-1320 CVE-2007-1321 CVE-2007-1322 CVE-2007-1323 CVE-2007-1366

Several vulnerabilities have been discovered in the QEMU processor
emulator, which may lead to the execution of arbitrary code or denial of
service. The Common Vulnerabilities and Exposures project identifies the
following problems:

CVE-2007-1320
    Tavis Ormandy discovered that a memory management routine of the Cirrus
    video driver performs insufficient bounds checking, which might
    allow the execution of arbitrary code through a heap overflow.

CVE-2007-1321
    Tavis Ormandy discovered that the NE2000 network driver and the socket
    code perform insufficient input validation, which might allow the
    execution of arbitrary code through a heap overflow.

CVE-2007-1322
    Tavis Ormandy discovered that the "icebp" instruction can be abused to
    terminate the emulation, resulting in denial of service.

CVE-2007-1323
    Tavis Ormandy discovered that the NE2000 network driver and the socket
    code perform insufficient input validation, which might allow the
    execution of arbitrary code through a heap overflow.

CVE-2007-1366
    Tavis Ormandy discovered that the "aam" instruction can be abused to
    crash qemu through a division by zero, resulting in denial of
    service.

For the oldstable distribution (sarge) these problems have been fixed in
version 0.6.1+20050407-1sarge1.

For the stable distribution (etch) these problems have been fixed
in version 0.8.2-4etch1.

For the unstable distribution (sid) these problems will be fixed soon.

We recommend that you upgrade your qemu packages.


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 3.1 alias sarge
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/q/qemu/qemu_0.6.1+20050407-1sarge1.dsc
      Size/MD5 checksum:      860 0d4d669e862d4249af1fd6d4e62ed21e
    http://security.debian.org/pool/updates/main/q/qemu/qemu_0.6.1+20050407-1sarge1.diff.gz
      Size/MD5 checksum:   456776 9940e2b1c7e3edce24a941d79cc45f1c
    http://security.debian.org/pool/updates/main/q/qemu/qemu_0.6.1+20050407.orig.tar.gz
      Size/MD5 checksum:   991912 a4cb70b9b701668c1c37705f9b5baae6

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/q/qemu/qemu_0.6.1+20050407-1sarge1_i386.deb
      Size/MD5 checksum:  1888278 b3fd3a2a4c01ccd3a22ffb079c2da48a

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/q/qemu/qemu_0.6.1+20050407-1sarge1_powerpc.deb
      Size/MD5 checksum:  1819756 d95ad449adf33a288cb509a5cf580593


Debian GNU/Linux 4.0 alias etch
- -------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/q/qemu/qemu_0.8.2-4etch1.dsc
      Size/MD5 checksum:     1122 9d55f0fd6f5261bff1a83f6ea0652afb
    http://security.debian.org/pool/updates/main/q/qemu/qemu_0.8.2-4etch1.diff.gz
      Size/MD5 checksum:    63407 e4f93234058f38d4fffbacb9524bbaa4
    http://security.debian.org/pool/updates/main/q/qemu/qemu_0.8.2.orig.tar.gz
      Size/MD5 checksum:  1501979 312eebc1386cca2e9b30a40763ab9c0d

  AMD64 architecture:

    http://security.debian.org/pool/updates/main/q/qemu/qemu_0.8.2-4etch1_amd64.deb
      Size/MD5 checksum:  3700158 ced2cb8925aadb4abb1d0bf9f49aaace

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/q/qemu/qemu_0.8.2-4etch1_i386.deb
      Size/MD5 checksum:  3675760 20e6e9eb0ea92b043397e3ea348a3925

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/q/qemu/qemu_0.8.2-4etch1_powerpc.deb
      Size/MD5 checksum:  3578440 e604fc75cead026b2581800f35c1f5b4


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

- ---------------------------------------------------------------------------------
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
 
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