CVE-2018-7173 Denial of service in n/a
An attacker can cause a denial of service in xpdf by providing a specially crafted file that triggers an infinite loop during symbol dictionary decoding.
- 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
- None listed
What is CVE-2018-7173?
CVE-2018-7173 is a medium-severity denial of service vulnerability in Xpdfreader Xpdf, published on 15 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 large loop in JBIG2Stream::readSymbolDictSeg in xpdf 4.00 allows an attacker to cause denial of service via a specific file due to inappropriate decoding.
Weakness: CWE-172
Which versions are affected by CVE-2018-7173?
It affects 1 product.
Products include Xpdfreader Xpdf.
How do I fix CVE-2018-7173?
No fix has been published for CVE-2018-7173 yet. Limit exposure of the affected software until one is available.
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-2018-7173 being exploited?
There is no known exploitation of CVE-2018-7173 in the wild and no public exploit code.
Other vulnerabilities in Xpdfreader Xpdf
Sources
Also known as DEBIAN-CVE-2018-7173, GHSA-2j3c-jv49-w6c7, UBUNTU-CVE-2018-7173.