CVE-2020-24996 Memory corruption in n/a
A remote attacker can cause a denial of service via segmentation fault by sending a crafted PDF file to the pdftohtml binary in Xpdf.
- 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-2020-24996?
CVE-2020-24996 is a high-severity memory corruption vulnerability in Xpdfreader Xpdf, published on 3 Sep 2020. 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
There is an invalid memory access in the function TextString::~TextString() located in Catalog.cc in Xpdf 4.0.2. It can be triggered by (for example) sending a crafted pdf file to the pdftohtml binary, which allows a remote attacker to cause a Denial of Service (Segmentation fault) or possibly have unspecified other impact.
Weakness: CWE-665
Which versions are affected by CVE-2020-24996?
It affects 1 product.
Products include Xpdfreader Xpdf.
How do I fix CVE-2020-24996?
No fix has been published for CVE-2020-24996 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-24996 being exploited?
There is no known exploitation of CVE-2020-24996 in the wild and no public exploit code.
Other vulnerabilities in Xpdfreader Xpdf
Sources
Also known as GHSA-fm37-c276-3p6g, UBUNTU-CVE-2020-24996.