CVE-2018-18455 Memory corruption in n/a
Remote attackers can cause a denial of service via heap-based buffer over-read in Xpdf using a crafted PDF file.
- 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-2018-18455?
CVE-2018-18455 is a medium-severity memory corruption 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 GfxImageColorMap class in GfxState.cc in Xpdf 4.00 allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted pdf file, as demonstrated by pdftoppm.
Weakness: CWE-125
Which versions are affected by CVE-2018-18455?
It affects 1 product.
Products include Xpdfreader Xpdf.
How do I fix CVE-2018-18455?
No fix has been published for CVE-2018-18455 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-2018-18455 being exploited?
There is no known exploitation of CVE-2018-18455 in the wild and no public exploit code.
Other vulnerabilities in Xpdfreader Xpdf
Sources
Also known as DEBIAN-CVE-2018-18455, GHSA-h55v-f4j6-2xwm, UBUNTU-CVE-2018-18455.