CVE-2018-16648

Public Exploit

Description

In Artifex MuPDF 1.13.0, the fz_append_byte function in fitz/buffer.c allows remote attackers to cause a denial of service (segmentation fault) via a crafted pdf file. This is caused by a pdf/pdf-device.c pdf_dev_alpha array-index underflow.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.25%
Third-Party Advisory ghostscript.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugs.ghostscript.com/show_bug.cgi?id=699685 third party advisory exploit
https://lists.debian.org/debian-lts-announce/2020/07/msg00019.html mailing list
https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=38f883fe129a5e89306252a4676eaaf4bc968824

Frequently Asked Questions

What is the severity of CVE-2018-16648?
CVE-2018-16648 has been scored as a medium severity vulnerability.
How to fix CVE-2018-16648?
To fix CVE-2018-16648, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-16648 being actively exploited in the wild?
It is possible that CVE-2018-16648 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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