CVE-2004-2758

Vulnerability

Sun Microsystems SunForum version 3.2 and SunForum 3D version 1.0 contain multiple unspecified vulnerabilities in their H.323 protocol implementation. Specially crafted H.225 packets, as demonstrated by the NISCC/OUSPG PROTOS test suite, can trigger a segmentation fault, leading to a process crash. The exact code paths and required configuration details have not been publicly documented beyond the vendor advisory [1].

Exploitation

An unauthenticated remote attacker can exploit these vulnerabilities by sending a sequence of malformed H.225 messages to an affected SunForum system. No prior authentication or special network access is required; the attacker only needs network connectivity to the target service [2][3]. The PROTOS suite automates the generation of such malformed messages, demonstrating a reliable trigger for the crash.

Impact

Successful exploitation causes a denial of service (DoS) by crashing the H.323 process, resulting in a segmentation fault. The impact is limited to service interruption; there is no evidence of code execution or data compromise in the available references [1][2].

Mitigation

Sun Microsystems released fixes for these vulnerabilities in later versions of SunForum; users of SunForum 3.2 and SunForum 3D 1.0 should upgrade to the patched versions as recommended in vendor advisories [1]. No workarounds are documented. The vulnerability is not listed on the CISA Known Exploited Vulnerabilities (KEV) catalog.