CVE-2018-16648: artifex mupdf Improper Validation of Array Index
CVSS: 5.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-16648DEBIAN-CVE-2018-16648
Published 06-09-2018Last modified 12-09-2024
Vulnerability summary
CVE-2018-16648 is a medium (CVSS 5.5) Improper Validation of Array Index vulnerability in artifex mupdf. EPSS estimates a 1.47% chance of exploitation in the next 30 days, higher than 73.3% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.0 (NVD)EPSS score
1.47%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 3 · Related 2Timeline
- 06-09-2018PublishedVulnerability first disclosed.
- 12-09-2024Last modifiedVulnerability information updated.
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 metrics
4 scores · 3 sources · 2 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.47%
Chance of exploitation in the next 30 days
Percentile
73%
Versus all other CVEs
30-day change
0.00 pp
From 1.47% on 19-09-2026
19-09-202619-10-2026
EPSS score1.47%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugs.ghostscript.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Artifex1 product
- mupdf1.13.0
Debian1 product
- mupdf< 1.14.0+ds1-4
Ubuntu1 product
- mupdf< 1.12.0+ds1-1ubuntu0.1~esm1
3 vendors · 3 products
