CVE-2019-6128 Denial of service in n/a
A memory leak in LibTIFF allows attackers to cause denial of service by exhausting system memory through crafted TIFF 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-2019-6128?
CVE-2019-6128 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 11 Jan 2019. 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 TIFFFdOpen function in tif_unix.c in LibTIFF 4.0.10 has a memory leak, as demonstrated by pal2rgb.
Weakness: CWE-401
Which versions are affected by CVE-2019-6128?
It affects 4 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Libtiff Libtiff, Opensuse Leap.
How do I fix CVE-2019-6128?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-6128 being exploited?
There is no known exploitation of CVE-2019-6128 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as ALPINE-CVE-2019-6128, DEBIAN-CVE-2019-6128, GHSA-56q3-8qv6-8rgp, JLSEC-2025-251, MGASA-2019-0075, UBUNTU-CVE-2019-6128.