CVE-2013-1956
The create_user_ns function in kernel/user_namespace.c in the Linux kernel before 3.8.6 does not...
The create_user_ns function in kernel/user_namespace.c in the Linux kernel before 3.8.6 does not check whether a chroot directory exists that differs from the namespace root directory, which allows local users to bypass intended filesystem restrictions via a crafted clone system call.
Exploit likelihood
What each source reports
NVD Score used
The create_user_ns function in kernel/user_namespace.c in the Linux kernel before 3.8.6 does not check whether a chroot directory exists that differs from the namespace root directory, which allows local users to bypass intended filesystem restrictions via a crafted clone system call.
- Record
CVE-2013-1956- CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-264
- Updated
- 2026-11-02
CVE List No score
The create_user_ns function in kernel/user_namespace.c in the Linux kernel before 3.8.6 does not check whether a chroot directory exists that differs from the namespace root directory, which allows local users to bypass intended filesystem restrictions via a crafted clone system call.
- Record
CVE-2013-1956- Updated
- 2026-11-02
EUVDEUVD-2013-1946 No score
The create_user_ns function in kernel/user_namespace.c in the Linux kernel before 3.8.6 does not check whether a chroot directory exists that differs from the namespace root directory, which allows local users to bypass intended filesystem restrictions via a crafted clone system call.
- Record
EUVD-2013-1946- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2wv8-r8jx-c9hx No score
The create_user_ns function in kernel/user_namespace.c in the Linux kernel before 3.8.6 does not...
The create_user_ns function in kernel/user_namespace.c in the Linux kernel before 3.8.6 does not check whether a chroot directory exists that differs from the namespace root directory, which allows local users to bypass intended filesystem restrictions via a crafted clone system call.
- Record
GHSA-2wv8-r8jx-c9hx- Updated
- 2026-11-02
OSV No score
The create_user_ns function in kernel/user_namespace.c in the Linux kernel before 3.8.6 does not check whether a chroot directory exists that differs from the namespace root directory, which allows local users to bypass intended filesystem restrictions via a crafted clone system call.
- Record
CVE-2013-1956- Updated
- 2026-11-02
OSVDEBIAN-CVE-2013-1956 No score
The create_user_ns function in kernel/user_namespace.c in the Linux kernel before 3.8.6 does not check whether a chroot directory exists that differs from the namespace root directory, which allows local users to bypass intended filesystem restrictions via a crafted clone system call.
- Record
DEBIAN-CVE-2013-1956- Updated
- 2026-11-02
OSVUBUNTU-CVE-2013-1956 No score
The create_user_ns function in kernel/user_namespace.c in the Linux kernel before 3.8.6 does not check whether a chroot directory exists that differs from the namespace root directory, which allows local users to bypass intended filesystem restrictions via a crafted clone system call.
- Record
UBUNTU-CVE-2013-1956- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2013-1956 is a low vulnerability (CVSS 2.1) in Linux Kernel, published April 24, 2013. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.38%, the 32nd percentile. Fixed in linux 3.8.11-1.
References
git.kernel.org?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3151527ee007b73a0ebd296010f1c0454a919c7d
github.com/torvalds/linux/commit/3151527ee007b73a0ebd296010f1c0454a919c7d
openwall.com/lists/oss-security/2013/04/16/11
kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.6
nvd.nist.gov/vuln/detail/CVE-2013-1956