CVE-2014-0205 Use after free in n/a
Local attackers can trigger a use-after-free in the Linux kernel futex implementation to cause a system crash or potentially escalate 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-2014-0205?
CVE-2014-0205 is a medium-severity use after free vulnerability in Linux kernel, published on 28 Sep 2014. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The futex_wait function in kernel/futex.c in the Linux kernel before 2.6.37 does not properly maintain a certain reference count during requeue operations, which allows local users to cause a denial of service (use-after-free and system crash) or possibly gain privileges via a crafted application that triggers a zero count.
Weakness: CWE-119
Which versions are affected by CVE-2014-0205?
It affects 1 product.
Linux distribution packages (35)
kernel Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.49.1.el6 |
kernel-debug Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.49.1.el6 |
kernel-debug-debuginfo Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.49.1.el6 |
kernel-debug-devel Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.49.1.el6 |
kernel-debuginfo Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.49.1.el6 |
kernel-debuginfo-common-x86_64 Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.49.1.el6 |
kernel-devel Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.49.1.el6 |
kernel-doc Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.49.1.el6 |
kernel-firmware Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.49.1.el6 |
kernel-headers Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.49.1.el6 |
perf Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.49.1.el6 |
perf-debuginfo Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.49.1.el6 |
python-perf Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.49.1.el6 |
python-perf-debuginfo Red Hat:rhel_eus:6.4::computenode | All versions | 0:2.6.32-358.49.1.el6 |
kernel Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-bootwrapper Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-debug Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-debug-debuginfo Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-debug-devel Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-debuginfo Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-debuginfo-common-i686 Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-debuginfo-common-ppc64 Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-debuginfo-common-s390x Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-debuginfo-common-x86_64 Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-devel Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-doc Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-firmware Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-headers Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-kdump Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-kdump-debuginfo Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
kernel-kdump-devel Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
perf Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
perf-debuginfo Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
python-perf Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
python-perf-debuginfo Red Hat:rhel_eus:6.4::server | All versions | 0:2.6.32-358.49.1.el6 |
Products include Linux kernel.
How do I fix CVE-2014-0205?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2014-0205 being exploited?
There is no known exploitation of CVE-2014-0205 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2014-0205, GHSA-cwrh-45v3-q8mf, RHSA-2014:1365.