Ethereal H1 dissector denial of service

ethereal-h1-dos (21592) The risk level is classified as MediumMedium Risk

Description:

Ethereal is vulnerable to a denial of service attack caused by a vulnerability in the H1 dissector. A remote attacker could use this vulnerability to cause Ethereal to enter into an infinite loop and cause Ethereal to crash.


Consequences:

Denial of Service

Remedy:

Upgrade to the latest version of Ethereal (0.10.12 or later), available from the Ethereal Download Web page. See References.

For Conectiva Linux 10.0:
Upgrade to the latest version of Ethereal (0.10.12-77079U10_5cl or later), as referenced in Conectiva Announcement CLSA-2005:1003. See References.

For Debian GNU/Linux:
Refer to DSA-853-1 for patch, upgrade, or suggested workaround information. See References.

For Red Hat Linux:
Refer to RHSA-2005:687-03 for patch, upgrade, or suggested workaround information. See References.

For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 2005-07-27 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

References:

Platforms Affected:

  • Conectiva Linux 10
  • Debian Debian Linux 3.0
  • Debian Debian Linux 3.1
  • Ethereal Ethereal 0.8.15 - 0.10.11
  • Gentoo Linux
  • MandrakeSoft Mandrake Linux 10.1 X86_64
  • MandrakeSoft Mandrake Linux 10.1
  • MandrakeSoft Mandrake Linux LE2005
  • MandrakeSoft Mandrake Linux LE2005 X86_64
  • RedHat Enterprise Linux 2.1 ES
  • RedHat Enterprise Linux 2.1 AS
  • RedHat Enterprise Linux 2.1 WS
  • RedHat Enterprise Linux 3 ES
  • RedHat Enterprise Linux 3 WS
  • RedHat Enterprise Linux 3 Desktop
  • RedHat Enterprise Linux 3 AS
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4 WS
  • RedHat Linux Advanced Workstation 2.1 Itanium

Reported:

Jul 26, 2005

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