CVE-2017-8421 Denial of service in n/a
A crafted PE file causes memory exhaustion in objdump via a memory leak in the BFD library, leading to denial of service.
- 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-2017-8421?
CVE-2017-8421 is a medium-severity denial of service vulnerability in Gnu Binutils, published on 2 May 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
The function coff_set_alignment_hook in coffcode.h in Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.28, has a memory leak vulnerability which can cause memory exhaustion in objdump via a crafted PE file. Additional validation in dump_relocs_in_section in objdump.c can resolve this.
Weakness: CWE-772
Which versions are affected by CVE-2017-8421?
It affects 1 product.
Products include Gnu Binutils.
How do I fix CVE-2017-8421?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2017-8421 being exploited?
There is no known exploitation of CVE-2017-8421 in the wild and no public exploit code.
Other vulnerabilities in Gnu Binutils
Sources
Also known as DEBIAN-CVE-2017-8421, GHSA-9f3x-v4x9-4g32, UBUNTU-CVE-2017-8421.