SILC Server apps/silcd/command.c denial of service

silc-command-dos (32846) The risk level is classified as LowLow Risk

Description:

SILC Server is vulnerable to a denial of service, caused by a NULL pointer dereference in the apps/silcd/command.c file. A remote attacker could exploit this vulnerability by creating or joining a server channel with a specially-crafted hmac algorithm name and no cipher algorithm name to crash the server.

Platforms Affected:

  • Gentoo, Linux
  • Pekka Riikonen, SILC Server prior to 1.0.3

Remedy:

Upgrade to the latest version of SILC Server (1.0.3 or later), available from the SILC Server Web site. See References.

For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 200703-12 for patch, upgrade, or suggested workaround information. See References.

Consequences:

Denial of Service

References:

Reported:

Mar 06, 2007

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