CVE-2017-18120 Use after free in n/a
A double-free vulnerability in gifsicle allows remote attackers to cause denial of service or potentially execute code via a crafted GIF 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-2017-18120?
CVE-2017-18120 is a high-severity use after free vulnerability in n/a, published on 2 Feb 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
A double-free bug in the read_gif function in gifread.c in gifsicle 1.90 allows a remote attacker to cause a denial-of-service attack or unspecified other impact via a maliciously crafted file, because last_name is mishandled, a different vulnerability than CVE-2017-1000421.
Weakness: CWE-415
Which versions are affected by CVE-2017-18120?
It affects 1 product.
Products include Lcdf Gifsicle.
How do I fix CVE-2017-18120?
Upgrade to a fixed version.
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-2017-18120 being exploited?
There is no known exploitation of CVE-2017-18120 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2017-18120, GHSA-6f9j-p2gf-3f72, MGASA-2018-0280, UBUNTU-CVE-2017-18120.