CVE-2017-12448 Use after free in n/a
Remote attackers can trigger a heap use-after-free and potentially execute code via a crafted nested archive file 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-2017-12448?
CVE-2017-12448 is a high-severity use after free vulnerability in Gnu Binutils, published on 4 Aug 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 bfd_cache_close function in bfd/cache.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29 and earlier, allows remote attackers to cause a heap use after free and possibly achieve code execution via a crafted nested archive file. This issue occurs because incorrect functions are called during an attempt to release memory. The issue can be addressed by better input validation in the bfd_generic_archive_p function in bfd/archive.c.
Weakness: CWE-416
Which versions are affected by CVE-2017-12448?
It affects 1 product.
Products include Gnu Binutils.
How do I fix CVE-2017-12448?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2017-12448 being exploited?
There is no known exploitation of CVE-2017-12448 in the wild and no public exploit code.
Other vulnerabilities in Gnu Binutils
Sources
Also known as DEBIAN-CVE-2017-12448, GHSA-vcp5-9fw7-xm53, UBUNTU-CVE-2017-12448.