CVE-2019-14872 Null dereference in newlib
A NULL pointer dereference in the newlib libc library allows attackers to cause a denial of service via unchecked memory allocations.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-14872?
CVE-2019-14872 is a medium-severity vulnerability in Red Hat newlib, published on 19 Mar 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The _dtoa_r function of the newlib libc library, prior to version 3.3.0, performs multiple memory allocations without checking their return value. This could result in NULL pointer dereference.
Weakness: CWE-476
Which versions are affected by CVE-2019-14872?
It affects 1 product.
Products include Newlib Project Newlib.
How do I fix CVE-2019-14872?
Upgrade to a fixed version.
Is CVE-2019-14872 being exploited?
There is no known exploitation of CVE-2019-14872 in the wild and no public exploit code.
Other vulnerabilities in Red Hat newlib
Sources
Also known as DEBIAN-CVE-2019-14872, GHSA-p7g8-2p6x-4pvg, UBUNTU-CVE-2019-14872.