yaSSL HASHwithTransform::Update function denial of service

yassl-hashwithtransformupdate-dos (39433) The risk level is classified as LowLow Risk

Description:

yaSSL is vulnerable to a denial of service, caused by an invalid memory access error in the HASHwithTransform::Update function. By sending a specially-crafted Hello packet, a remote attacker could crash the application.

Platforms Affected:

  • Apple, Mac OS X Server 10.5
  • Apple, Mac OS X Server 10.5.1
  • Apple, Mac OS X Server 10.5.2
  • Apple, Mac OS X Server 10.5.3
  • Apple, Mac OS X Server 10.5.4
  • Apple, Mac OS X Server 10.5.5
  • Canonical, Ubuntu 6.06 LTS
  • Canonical, Ubuntu 6.10
  • Canonical, Ubuntu 7.04
  • Canonical, Ubuntu 7.10
  • Debian, Debian Linux 4.0
  • MandrakeSoft, Mandrake Linux 2007.1 X86_64
  • MandrakeSoft, Mandrake Linux 2007.1
  • MandrakeSoft, Mandrake Linux 2008.0 X86_64
  • MandrakeSoft, Mandrake Linux 2008.0
  • MandrakeSoft, Mandrake Linux Corporate Server 4.0
  • MandrakeSoft, Mandrake Linux Corporate Server 4.0 X86_64
  • yaSSL, yaSSL 1.7.5 and prior

Remedy:

Upgrade to the latest version of yaSSL (1.8.6 or later), available from the yaSSL Web site. See References.

For other distributions:
Apply the appropriate update for your system. See References.

Consequences:

Denial of Service

References:

Reported:

Jan 04, 2008

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

Return to the main page