CVE-2017-6966 Use after free in n/a
A use-after-free vulnerability in GNU Binutils readelf allows attackers to cause denial of service or potentially execute code via a crafted MSP430 binary.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2017-6966?
CVE-2017-6966 is a medium-severity use after free vulnerability in Gnu Binutils, published on 17 Mar 2017. 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
readelf in GNU Binutils 2.28 has a use-after-free (specifically read-after-free) error while processing multiple, relocated sections in an MSP430 binary. This is caused by mishandling of an invalid symbol index, and mishandling of state across invocations.
Weakness: CWE-416
Which versions are affected by CVE-2017-6966?
It affects 1 product.
Products include Gnu Binutils.
How do I fix CVE-2017-6966?
Apply the vendor's patch.
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-2017-6966 being exploited?
There is no known exploitation of CVE-2017-6966 in the wild and no public exploit code.
Other vulnerabilities in Gnu Binutils
Sources
Also known as DEBIAN-CVE-2017-6966, GHSA-8v4m-gqx8-68xh, UBUNTU-CVE-2017-6966.