CVE-2014-4943 Privilege escalation in n/a
Local attackers can exploit PPPoL2TP socket differences in the Linux kernel to gain elevated privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2014-4943?
CVE-2014-4943 is a medium-severity vulnerability in Debian Debian Linux, published on 19 Jul 2014. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The PPPoL2TP feature in net/l2tp/l2tp_ppp.c in the Linux kernel through 3.15.6 allows local users to gain privileges by leveraging data-structure differences between an l2tp socket and an inet socket.
Weakness: CWE-269
Which versions are affected by CVE-2014-4943?
It affects 6 products.
Linux distribution packages (14)
kernel Red Hat:rhel_mission_critical:6.2::server | All versions | 0:2.6.32-220.54.1.el6 |
kernel-debug Red Hat:rhel_mission_critical:6.2::server | All versions | 0:2.6.32-220.54.1.el6 |
kernel-debug-debuginfo Red Hat:rhel_mission_critical:6.2::server | All versions | 0:2.6.32-220.54.1.el6 |
kernel-debug-devel Red Hat:rhel_mission_critical:6.2::server | All versions | 0:2.6.32-220.54.1.el6 |
kernel-debuginfo Red Hat:rhel_mission_critical:6.2::server | All versions | 0:2.6.32-220.54.1.el6 |
kernel-debuginfo-common-x86_64 Red Hat:rhel_mission_critical:6.2::server | All versions | 0:2.6.32-220.54.1.el6 |
kernel-devel Red Hat:rhel_mission_critical:6.2::server | All versions | 0:2.6.32-220.54.1.el6 |
kernel-doc Red Hat:rhel_mission_critical:6.2::server | All versions | 0:2.6.32-220.54.1.el6 |
kernel-firmware Red Hat:rhel_mission_critical:6.2::server | All versions | 0:2.6.32-220.54.1.el6 |
kernel-headers Red Hat:rhel_mission_critical:6.2::server | All versions | 0:2.6.32-220.54.1.el6 |
perf Red Hat:rhel_mission_critical:6.2::server | All versions | 0:2.6.32-220.54.1.el6 |
perf-debuginfo Red Hat:rhel_mission_critical:6.2::server | All versions | 0:2.6.32-220.54.1.el6 |
python-perf Red Hat:rhel_mission_critical:6.2::server | All versions | 0:2.6.32-220.54.1.el6 |
python-perf-debuginfo Red Hat:rhel_mission_critical:6.2::server | All versions | 0:2.6.32-220.54.1.el6 |
Products include Debian Debian Linux, Linux kernel, Opensuse Opensuse, Redhat Enterprise Linux Server Aus, Suse Linux Enterprise Desktop, Suse Linux Enterprise Server.
How do I fix CVE-2014-4943?
Apply the vendor's patch.
Is CVE-2014-4943 being exploited?
There is no known exploitation of CVE-2014-4943 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry and 1 proofs of concept on GitHub.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2014-4943, GHSA-8xp6-4x45-vm77, RHSA-2014:1025, UBUNTU-CVE-2014-4943.