CVE-2005-1036
HighSummary
The vulnerability in FreeBSD 5.x through 5.4 on AMD64 involves improper initialization of the IO permission bitmap used to control user access to certain hardware. A local user can exploit this flaw to bypass intended access restrictions, potentially leading to denial of service, sensitive information disclosure, or privilege escalation.
Risk Assessment
The risk for the organization includes the possibility of a local user causing system crashes, leaking confidential data, or gaining unauthorized administrative privileges, threatening system integrity and confidentiality.
Recommendation
It is recommended to immediately upgrade FreeBSD to a version later than 5.4, which includes a fix for this vulnerability. If an upgrade is not possible, restrict local access to trusted users and monitor system activity.
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Original NVD description (English source)
FreeBSD 5.x to 5.4 on AMD64 does not properly initialize the IO permission bitmap used to allow user access to certain hardware, which allows local users to bypass intended access restrictions to cause a denial of service, obtain sensitive information, and possibly gain privileges.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS