CVE-2018-10877 Memory corruption in kernel
An out-of-bound access in the Linux kernel ext4 filesystem allows attackers to cause denial of service or execute code via a crafted image.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2018-10877?
CVE-2018-10877 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 18 Jul 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Linux kernel ext4 filesystem is vulnerable to an out-of-bound access in the ext4_ext_drop_refs() function when operating on a crafted ext4 filesystem image.
Weakness: CWE-125
Which versions are affected by CVE-2018-10877?
It affects 4 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel, Redhat Enterprise Linux.
How do I fix CVE-2018-10877?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-10877 being exploited?
There is no known exploitation of CVE-2018-10877 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2018-10877, GHSA-4hq8-f3mj-m9wc, UBUNTU-CVE-2018-10877.