Title: SCO UnixWare PPP Prompt Local Buffer Overflow Vulnerability
Severity: HIGH
Description:
SCO UnixWare is prone to a local buffer-overflow vulnerability. This issue arises because the application fails to perform boundary checks before copying user-supplied data into insufficiently sized memory buffers.
The vulnerability presents itself when the application processes excessive data supplied through the Unixware point-to-point protocol (PPP) prompt. An attacker supplies data containing replacement memory addresses and arbitrary machine code to the affected application to corrupt process memory and execute arbitrary code.
A successful attack allows arbitrary machine code execution with superuser privileges.
UnixWare 7.1.4 and 7.1.3 are reported prone to this issue.
Affected Products:
- SCO Unixware 7.1.3
- SCO Unixware 7.1.4
References:
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