A vulnerability classified as critical was found in Epic IRC Client up to pre2.003 (Chat Software). Affected by this vulnerability is an unknown function of the component CTCP Request Handler. The manipulation with an unknown input leads to a integer coercion vulnerability. The CWE definition for the vulnerability is CWE-192. Integer coercion refers to a set of flaws pertaining to the type casting, extension, or truncation of primitive data types. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

EPIC IRC Client (EPIC4) pre2.002, pre2.003, and possibly later versions, allows remote malicious IRC servers to cause a denial of service (crash) and possibly execute arbitrary code via a CTCP request from a large nickname, which causes an incorrect length calculation.

The weakness was presented 06/09/2003 (Website). It is possible to read the advisory at ftp.prbh.org. This vulnerability is known as CVE-2003-0328 since 05/20/2003. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 15236 (Debian DSA-399-1 : epic4 - buffer overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 6 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (15236). See 20500 for similar entry.

Productinfo

Type

• Chat Software

Vendor

• Epic

Name

• IRC Client

Version

• pre2.003

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CPE 2.2info

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