CVE-2018-18459 Null dereference in n/a
Remote attackers can cause a denial of service via a crafted PDF file due to a NULL pointer dereference in the DCTStream::getBlock function.
- 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-2018-18459?
CVE-2018-18459 is a medium-severity vulnerability in Xpdfreader Xpdf, published on 18 Oct 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
The function DCTStream::getBlock in Stream.cc in Xpdf 4.00 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted pdf file, as demonstrated by pdftoppm.
Weakness: CWE-476
Which versions are affected by CVE-2018-18459?
It affects 1 product.
Products include Xpdfreader Xpdf.
How do I fix CVE-2018-18459?
No fix has been published for CVE-2018-18459 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-18459 being exploited?
There is no known exploitation of CVE-2018-18459 in the wild and no public exploit code.
Other vulnerabilities in Xpdfreader Xpdf
Sources
Also known as DEBIAN-CVE-2018-18459, GHSA-6p6g-2h65-337p, UBUNTU-CVE-2018-18459.