Title: Linux Kernel Sbus PROM Driver copyin_string() Overflow
Info
Disclosure
Jun 29, 2004
Discovery
Unknown
Dates
Exploit
Unknown
Solution
Unknown
Description
A local overflow exists in the Sbus PROM driver in the Linux kernel. The copyin_string function fails to check if an integer is signed resulting in an integer overflow. With a specially crafted request, an attacker can potentially execute arbitrary code resulting in a loss of integrity, and/or availability.
Classification
Location:
Local Access Required
Attack Type:
Denial of Service,
Input Manipulation
Impact:
Loss of Integrity,
Loss of Availability
Exploit:
Exploit Unknown
Disclosure:
OSVDB Verified
Solution
Upgrade to version 2.4.19 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.