what you don't know can hurt you

Debian Security Advisory 2544-1

Debian Security Advisory 2544-1
Posted Sep 10, 2012
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2544-1 - Multiple denial of service vulnerabilities have been discovered in xen, an hypervisor.

tags | advisory, denial of service, vulnerability
systems | linux, debian
advisories | CVE-2012-3494, CVE-2012-3496
MD5 | dd7f9f55d951b5271f75c76f3fa9aa5b

Debian Security Advisory 2544-1

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- -------------------------------------------------------------------------
Debian Security Advisory DSA-2544-1 security@debian.org
http://www.debian.org/security/ Raphael Geissert
September 08, 2012 http://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : xen
Vulnerability : denial of service
Problem type : local
Debian-specific: no
CVE ID : CVE-2012-3494 CVE-2012-3496

Multiple denial of service vulnerabilities have been discovered in xen,
an hypervisor. The Common Vulnerabilities and Exposures project identifies
the following problems:

CVE-2012-3494:

It was discovered that set_debugreg allows writes to reserved bits
of the DR7 debug control register on amd64 (x86-64) paravirtualised
guests, allowing a guest to crash the host.

CVE-2012-3496:

Matthew Daley discovered that XENMEM_populate_physmap, when called
with the MEMF_populate_on_demand flag set, a BUG (detection routine)
can be triggered if a translating paging mode is not being used,
allowing a guest to crash the host.

For the stable distribution (squeeze), these problems have been fixed in
version 4.0.1-5.4.

For the testing distribution (wheezy), these problems will be fixed
soon.

For the unstable distribution (sid), these problems have been fixed in
version 4.1.3-2.

We recommend that you upgrade your xen packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)

iEYEARECAAYFAlBLvZwACgkQYy49rUbZzlryDgCggzpHokah5xZkdgUOV0/rYyYb
XDMAnRpvs9LXfHlnt2I40cqGXLG9f76i
=c010
-----END PGP SIGNATURE-----


Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

August 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Aug 1st
    10 Files
  • 2
    Aug 2nd
    8 Files
  • 3
    Aug 3rd
    2 Files
  • 4
    Aug 4th
    1 Files
  • 5
    Aug 5th
    15 Files
  • 6
    Aug 6th
    79 Files
  • 7
    Aug 7th
    16 Files
  • 8
    Aug 8th
    11 Files
  • 9
    Aug 9th
    10 Files
  • 10
    Aug 10th
    0 Files
  • 11
    Aug 11th
    6 Files
  • 12
    Aug 12th
    26 Files
  • 13
    Aug 13th
    15 Files
  • 14
    Aug 14th
    19 Files
  • 15
    Aug 15th
    52 Files
  • 16
    Aug 16th
    11 Files
  • 17
    Aug 17th
    1 Files
  • 18
    Aug 18th
    2 Files
  • 19
    Aug 19th
    18 Files
  • 20
    Aug 20th
    19 Files
  • 21
    Aug 21st
    17 Files
  • 22
    Aug 22nd
    9 Files
  • 23
    Aug 23rd
    0 Files
  • 24
    Aug 24th
    0 Files
  • 25
    Aug 25th
    0 Files
  • 26
    Aug 26th
    0 Files
  • 27
    Aug 27th
    0 Files
  • 28
    Aug 28th
    0 Files
  • 29
    Aug 29th
    0 Files
  • 30
    Aug 30th
    0 Files
  • 31
    Aug 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close