vsftpd connection denial of service

vsftpd-connection-dos (16222) The risk level is classified as MediumMedium Risk

Description:

Very Secure File Transfer Protocol Daemon (vsftpd) is vulnerable to a denial of service attack, caused by an error in handling many connects and disconnects. A remote attacker could use this vulnerability to cause a denial of service.


Consequences:

Denial of Service

Remedy:

Upgrade to the latest version of vsftpd (1.2.2 or later) available from the vsftpd Web site. See references.

References:

  • vsftpd Web site: vsftpd web site.
  • BID-10394: Vsftpd Listener Denial of Service Vulnerability
  • CVE-2004-2259: vsftpd before 1.2.2, when under heavy load, allows attackers to cause a denial of service (crash) via a SIGCHLD signal during a malloc or free call, which is not re-entrant.
  • OSVDB ID: 6306: vsftpd Connection Handling DoS
  • SA11680: vsftpd Connection Handling Denial of Service Vulnerability

Platforms Affected:

  • vsftpd vsftpd prior to 1.2.2

Reported:

May 21, 2004

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