ngIRCd SSL/TLS denial of service
| ngircd-ssltls-dos (54272) |  Medium Risk |
Description:
ngIRCd is vulnerable to a denial of service, caused by an error in the Conn_GetCipherInfo() and Conn_UsesSSL() functions when processing data. If the server is compiled with SSL/TLS support and standalone mode is disabled, a remote attacker could send a MOTD request to crash the server.
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of ngIRCd (14.1 or later), available from the ngIRCd Web site. See References.
References:
- ngIRCd Web site : security: fix remotely triggerable crash in SSL/TLS code.
- BID-37021: ngIRCd SSL/TLS Support MOTD Request Multiple Denial Of Service Vulnerabilities
- CVE-2009-4652: The (1) Conn_GetCipherInfo and (2) Conn_UsesSSL functions in src/ngircd/conn.c in ngIRCd 13 and 14, when SSL/TLS support is present and standalone mode is disabled, allow remote attackers to cause a denial of service (application crash) by sending the MOTD command from another server in the same IRC network, possibly related to an array index error.
- OSVDB ID: 59975: ngIRCd src/ngircd/conn.c Multiple Function SSL / TLS Remote DoS
- SA37343: ngIRCd SSL/TLS Denial of Service Vulnerabilities
- VUPEN/ADV-2009-3240: ngIRCd SSL/TLS Data Processing Denial of Service Vulnerability
Platforms Affected:
- Alexander Barton ngIRCd 13
- Alexander Barton ngIRCd 14
Reported:
May 04, 2009
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