CVE-2017-15020 Memory corruption in n/a
A heap-based buffer over-read in the BFD library allows remote attackers to cause a denial of service via a crafted ELF file.
- 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-2017-15020?
CVE-2017-15020 is a high-severity memory corruption vulnerability in Gnu Binutils, published on 4 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
dwarf1.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, mishandles pointers, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted ELF file, related to parse_die and parse_line_table, as demonstrated by a parse_die heap-based buffer over-read.
Weakness: CWE-125
Which versions are affected by CVE-2017-15020?
It affects 1 product.
Products include Gnu Binutils.
How do I fix CVE-2017-15020?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2017-15020 being exploited?
There is no known exploitation of CVE-2017-15020 in the wild and no public exploit code.
Other vulnerabilities in Gnu Binutils
Sources
Also known as DEBIAN-CVE-2017-15020, GHSA-vhq5-x52q-wx75, UBUNTU-CVE-2017-15020.