CVE-2017-15939 Null dereference in n/a
Remote attackers can cause a denial of service via a crafted ELF file due to a NULL pointer dereference in the BFD library.
- 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-2017-15939?
CVE-2017-15939 is a medium-severity vulnerability in Gnu Binutils, published on 27 Oct 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
dwarf2.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, mishandles NULL files in a .debug_line file table, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted ELF file, related to concat_filename. NOTE: this issue is caused by an incomplete fix for CVE-2017-15023.
Weakness: CWE-476
Which versions are affected by CVE-2017-15939?
It affects 1 product.
Products include Gnu Binutils.
How do I fix CVE-2017-15939?
Apply the vendor's patch.
Is CVE-2017-15939 being exploited?
There is no known exploitation of CVE-2017-15939 in the wild and no public exploit code.
Other vulnerabilities in Gnu Binutils
Sources
Also known as GHSA-pmp5-rw9v-rgv5, UBUNTU-CVE-2017-15939.