Buffer overflow in Artifex Mupdf

CVE-2018-6187

In Artifex MuPDF 1.12.0, there is a heap-based buffer overflow vulnerability in the do_pdf_save_document function in the pdf/pdf-write.c file. Remote attackers could leverage the vulnerability to cause a denial of service via a crafted pdf file.

Vulnerability class: Buffer Overflow

EPSS: 0.019 (77.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-6187?
CVE-2018-6187 is a medium-severity vulnerability in Artifex Mupdf, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2018-01-24.
How severe is CVE-2018-6187?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2018-6187 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.