CVE-2013-1767 Use after free in n/a
Local attackers can exploit a use-after-free in the Linux kernel's tmpfs remount function to escalate privileges or crash the system.
- 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-2013-1767?
CVE-2013-1767 is a medium-severity use after free vulnerability in Linux kernel, published on 28 Feb 2013. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Use-after-free vulnerability in the shmem_remount_fs function in mm/shmem.c in the Linux kernel before 3.7.10 allows local users to gain privileges or cause a denial of service (system crash) by remounting a tmpfs filesystem without specifying a required mpol (aka mempolicy) mount option.
Weakness: CWE-399
Which versions are affected by CVE-2013-1767?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2013-1767?
Upgrade to a fixed version.
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-2013-1767 being exploited?
There is no known exploitation of CVE-2013-1767 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2013-1767, GHSA-323p-r9jj-62gh.