CVE-2014-9715 Null dereference in n/a

What is CVE-2014-9715?

CVE-2014-9715 is a medium-severity vulnerability in Linux kernel, published on 27 May 2015. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Which versions are affected by CVE-2014-9715?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2014-9715?

Upgrade to a fixed version.

Is CVE-2014-9715 being exploited?

There is no known exploitation of CVE-2014-9715 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2014-9715, GHSA-ff56-mpjv-8r2j, UBUNTU-CVE-2014-9715.