Description
include/net/netfilter/nf_conntrack_extend.h in the netfilter subsystem in the Linux kernel before 3.14.5 uses an insufficiently large data type for certain extension data, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via outbound network traffic that triggers extension loading, as demonstrated by configuring a PPTP tunnel in a NAT environment.
Metrics
CVSS 2.0 4.9/10
AV:L/AC:L/Au:N/C:N/I:N/A:CAffected software
No affected versions have been published.
Timeline
- Published
- May 27, 2015
- Last modified
- Jun 17, 2026
- NVD status
- Modified