A vulnerability has been identified in Linux Kernel, which could be exploited by malicious users to bypass security restrictions. This issue is caused by an error in the "do_brk()" [mm/mmap.c] function that does not properly restrict access to low pages available in userspace virtual memory, which could be exploited by local attackers to bypass the "mmap_min_addr" memory protection mechanism via a specially crafted binary.
Credits
Vulnerability reported by the vendor.
ChangeLog
2007-12-12 : Initial release
Vulnerability Management
Subscribe to FrSIRT VNS and receive real-time e-mail and SMS alerts when new vulnerabilities, exploits, or patches relevant to your systems and network configurations are available.
Feedback
If you have additional information or corrections for this security advisory please submit them via our contact form or by email to updates@frsirt.com.
French
