CVE-2007-6053

Vulnerability

IBM DB2 UDB 9.1 prior to Fixpak 4 does not properly handle the use of large numbers of file descriptors. The vendor description indicates this can result in memory corruption, though the exact mechanism and conditions are not fully detailed in available references [1]. The vulnerability affects DB2 Version 9.1 for Linux, UNIX, and Windows platforms [1].

Exploitation

No specific exploit steps are described in the references. The vulnerability is triggered by the DB2 process utilizing a large number of file descriptors, but the precise sequence of events or attack surface (e.g., whether an unauthenticated remote attacker can cause this condition) is not disclosed [1]. The attack vector and required privileges remain unclear from the published information.

Impact

According to the vendor, the improper handling of file descriptors can lead to memory corruption [1]. The specific consequences—such as denial of service, information disclosure, or code execution—are not characterized in the available references. The impact is described as unknown by the CVE entry itself, and the vendor description is considered too vague to confirm security relevance.

Mitigation

IBM DB2 UDB 9.1 Fixpak 4 is the first fix pack that addresses this issue [1]. Users should upgrade to DB2 Version 9.1 Fixpak 4 or later. No workarounds are provided in the references. The fix pack release date is not explicitly stated in the referenced document, but it is listed as a fix for APAR IY92832.