OpenSSL libssl denial of service

openssl-libssl-dos (43948) The risk level is classified as LowLow Risk

Description:

OpenSSL and the Apache HTTP Server are vulnerable to a denial of service, caused by a memory leak within the libssl library and the mod_ssl module. By invoking multiple SSL connections with zlib support, a remote attacker could exploit this vulnerability to consume an overly large amount of memory resulting in a denial of service.

Platforms Affected:

  • Apache, HTTP Server 2.2.8
  • Apple, Mac OS X 10.5.5
  • Apple, Mac OS X Server 10.5.5
  • Canonical, Ubuntu 6.06 LTS
  • Canonical, Ubuntu 7.10
  • Canonical, Ubuntu 8.04 LTS
  • Gentoo, Linux
  • MandrakeSoft, Mandrake Linux 2008.1
  • MandrakeSoft, Mandrake Linux 2008.1 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 4.0 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 4.0
  • Mandriva, Linux 2009.0
  • Mandriva, Linux 2009.0 X86_64
  • OpenSSL, OpenSSL 0.9.8f
  • OpenSSL, OpenSSL 0.9.8g
  • OpenSSL, OpenSSL 0.9.8h
  • RedHat, Enterprise Linux 5 Client
  • RedHat, Enterprise Linux 5 Client Workstation
  • RedHat, Enterprise Linux 5
  • RedHat, Enterprise Linux 5.3.z EUS

Remedy:

For Apache HTTP Server:
Upgrade to the latest version of Apache (2.2.9 or later), available from the Apache Web site. See References.

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

Consequences:

Denial of Service

References:

Reported:

Jul 09, 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