CVE-2018-11490 Memory corruption in n/a
Heap-based buffer overflow in GIFLIB allows attackers to cause denial of service via crafted GIF files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2018-11490?
CVE-2018-11490 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 26 May 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The DGifDecompressLine function in dgif_lib.c in GIFLIB (possibly version 3.0.x), as later shipped in cgif.c in sam2p 0.49.4, has a heap-based buffer overflow because a certain "Private->RunningCode - 2" array index is not checked. This will lead to a denial of service or possibly unspecified other impact.
Which versions are affected by CVE-2018-11490?
It affects 4 products.
Linux distribution packages (1)
giflib openSUSE:Tumbleweed | All versions | 5.2.1-2.3 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, Giflib Project Giflib, Sam2p Project Sam2p.
How do I fix CVE-2018-11490?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-11490 being exploited?
There is no known exploitation of CVE-2018-11490 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2018-11490, GHSA-5fjm-57qj-h2pj, MGASA-2019-0096, UBUNTU-CVE-2018-11490, openSUSE-SU-2024:10784-1.