[Trisquel-security] [USN-1190-1] DHCP vulnerabilities

Marc Deslauriers marc.deslauriers at canonical.com
Mon Aug 15 15:30:01 CEST 2011

Ubuntu Security Notice USN-1190-1
August 15, 2011

dhcp3, isc-dhcp vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS


An attacker could send crafted input to DHCP and cause it to crash.

Software Description:
- isc-dhcp: DHCP server and client
- dhcp3: DHCP server and client


David Zych discovered that DHCP incorrectly handled certain malformed
packets. A remote attacker could use this issue to cause DHCP to crash,
resulting in a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.04:
  isc-dhcp-server                 4.1.1-P1-15ubuntu9.1

Ubuntu 10.10:
  dhcp3-server                    3.1.3-2ubuntu6.3

Ubuntu 10.04 LTS:
  dhcp3-server                    3.1.3-2ubuntu3.3

Ubuntu 8.04 LTS:
  dhcp3-server                    3.0.6.dfsg-1ubuntu9.3

In general, a standard system update will make all the necessary changes.

  CVE-2011-2748, CVE-2011-2749

Package Information:

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 836 bytes
Desc: This is a digitally signed message part
URL: <http://listas.trisquel.info/pipermail/trisquel-security/attachments/20110815/87206d2a/attachment.pgp>
-------------- next part --------------
ubuntu-security-announce mailing list
ubuntu-security-announce at lists.ubuntu.com
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce

More information about the Trisquel-security mailing list