CVE-2018-16648 — MEDIUM (5.5)

Vulnerability 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.

CVSS Score

5.5

MEDIUM

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Artifex	Mupdf	1.13.0

Related Weaknesses (CWE)

CWE-129

References

https://bugs.ghostscript.com/show_bug.cgi?id=699685ExploitThird Party Advisory
https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=38f883fe129a5
https://lists.debian.org/debian-lts-announce/2020/07/msg00019.html
https://bugs.ghostscript.com/show_bug.cgi?id=699685ExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00019.html

FAQ

What is CVE-2018-16648?

CVE-2018-16648 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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-devi...

How severe is CVE-2018-16648?

CVE-2018-16648 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-16648?

Check the references section above for vendor advisories and patch information. Affected products include: Artifex Mupdf.