CVE-2019-19927 Memory corruption in n/a
A local attacker can trigger a slab-out-of-bounds read in the Linux kernel by mounting a crafted f2fs filesystem image, potentially leading to information disclosure or system crash.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-19927?
CVE-2019-19927 is a medium-severity memory corruption vulnerability in Linux kernel, published on 31 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel 5.0.0-rc7 (as distributed in ubuntu/linux.git on kernel.ubuntu.com), mounting a crafted f2fs filesystem image and performing some operations can lead to slab-out-of-bounds read access in ttm_put_pages in drivers/gpu/drm/ttm/ttm_page_alloc.c. This is related to the vmwgfx or ttm module.
Weakness: CWE-125
Which versions are affected by CVE-2019-19927?
It affects 2 products.
Products include Linux kernel, Opensuse Leap.
How do I fix CVE-2019-19927?
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-2019-19927 being exploited?
There is no known exploitation of CVE-2019-19927 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2019-19927, GHSA-wwjm-g2hc-3mhm, UBUNTU-CVE-2019-19927.