CVE-2017-14939 Memory corruption in n/a
Remote attackers can cause a denial of service via heap-based buffer over-read in the BFD library when processing crafted ELF files.
- 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-2017-14939?
CVE-2017-14939 is a medium-severity memory corruption vulnerability in Gnu Binutils, published on 29 Sep 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
decode_line_info in dwarf2.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, mishandles a length calculation, which allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted ELF file, related to read_1_byte.
Weakness: CWE-125
Which versions are affected by CVE-2017-14939?
It affects 1 product.
Products include Gnu Binutils.
How do I fix CVE-2017-14939?
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-2017-14939 being exploited?
There is no known exploitation of CVE-2017-14939 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Gnu Binutils
Sources
Also known as DEBIAN-CVE-2017-14939, GHSA-xqq9-3xrc-w23j, UBUNTU-CVE-2017-14939.