CVE-2002-1420
HighSummary
Integer signedness error in select() on OpenBSD 3.1 and earlier allows local users to overwrite arbitrary kernel memory via a negative value for the size parameter.
Risk Assessment
This vulnerability may lead to serious security breaches, allowing local users to gain unauthorized access to kernel memory.
Recommendation
It is recommended to upgrade the system to a newer version of OpenBSD to eliminate this vulnerability.
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Original NVD description (English source)
Integer signedness error in select() on OpenBSD 3.1 and earlier allows local users to overwrite arbitrary kernel memory via a negative value for the size parameter, which satisfies the boundary check as a signed integer, but is later used as an unsigned integer during a data copying operation.