Linux Kernel 'write_tag_3_packet()' Function Local Heap Buffer Overflow Vulnerability

Bugtraq ID:	63493
Class:	Boundary Condition Error
CVE:
Remote:	No
Local:	Yes
Published:	Nov 04 2013 12:00AM
Updated:	Nov 04 2013 12:00AM
Credit:	x90c
Vulnerable:	Linux kernel 2.6.18
Not Vulnerable:

Linux Kernel 'write_tag_3_packet()' Function Local Heap Buffer Overflow Vulnerability

The Linux kernel is prone to a local heap-based buffer-overflow vulnerability because it fails to perform adequate boundary checks on user-supplied data.

Local attackers may exploit this issue to execute arbitrary code with elevated privileges. Failed exploit attempts will likely crash the kernel, denying service to legitimate users.

Linux Kernel 'write_tag_3_packet()' Function Local Heap Buffer Overflow Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Linux Kernel 'write_tag_3_packet()' Function Local Heap Buffer Overflow Vulnerability

Solution:
Currently, we are not aware of any vendor-supplied patches. If you feel we are in error or are aware of more recent information, please mail us at: [email protected].

Linux Kernel 'write_tag_3_packet()' Function Local Heap Buffer Overflow Vulnerability

References:

• Linux Homepage (Linux)
  
• XADV-2013003 Linux Kernel eCryptfs write_tag_3_packet Heap Buffer Overflow Vulne (seclists.org)