CVE-2017-18186 Denial of service in n/a
An attacker can cause a denial of service via an infinite loop in QPDF by providing a crafted PDF with looping xref tables.
- 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-2017-18186?
CVE-2017-18186 is a medium-severity denial of service vulnerability in n/a, published on 13 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
An issue was discovered in QPDF before 7.0.0. There is an infinite loop due to looping xref tables in QPDF.cc.
Weakness: CWE-835
Which versions are affected by CVE-2017-18186?
It affects 1 product.
Products include Qpdf Project Qpdf.
How do I fix CVE-2017-18186?
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-2017-18186 being exploited?
There is no known exploitation of CVE-2017-18186 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2017-18186, GHSA-v5gm-hmrc-rgfq, UBUNTU-CVE-2017-18186.