CVE-2018-18309 Null dereference in n/a
An attacker can cause a denial of service via a segmentation fault in the BFD library when processing malformed binary files with tools like objdump.
- 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-2018-18309?
CVE-2018-18309 is a medium-severity vulnerability in Gnu Binutils, published on 15 Oct 2018. 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
An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. An invalid memory address dereference was discovered in read_reloc in reloc.c. The vulnerability causes a segmentation fault and application crash, which leads to denial of service, as demonstrated by objdump, because of missing _bfd_clear_contents bounds checking.
Weakness: CWE-119
Which versions are affected by CVE-2018-18309?
It affects 1 product.
Products include Gnu Binutils.
How do I fix CVE-2018-18309?
Apply the vendor's patch.
Is CVE-2018-18309 being exploited?
There is no known exploitation of CVE-2018-18309 in the wild and no public exploit code.
Other vulnerabilities in Gnu Binutils
Sources
Also known as DEBIAN-CVE-2018-18309, GHSA-cqf4-rwmp-9g9j, UBUNTU-CVE-2018-18309.