CVE-2019-12958 Memory corruption in n/a
A heap-based buffer over-read in Xpdf's Type1C font conversion allows attackers to cause denial of service or potentially execute code via malicious PDFs.
- 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-2019-12958?
CVE-2019-12958 is a medium-severity memory corruption vulnerability in Glyphandcog Xpdfreader, published on 24 Jun 2019. 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
In Xpdf 4.01.01, a heap-based buffer over-read could be triggered in FoFiType1C::convertToType0 in fofi/FoFiType1C.cc when it is trying to access the second privateDicts array element, because the privateDicts array has only one element allocated.
Weakness: CWE-125
Which versions are affected by CVE-2019-12958?
It affects 1 product.
Products include Glyphandcog Xpdfreader.
How do I fix CVE-2019-12958?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-12958 being exploited?
There is no known exploitation of CVE-2019-12958 in the wild and no public exploit code.
Other vulnerabilities in Glyphandcog Xpdfreader
Sources
Also known as GHSA-x6m5-g86w-pv2v, UBUNTU-CVE-2019-12958.