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Fencer Vulns
high 7.8

CVE-2017-17858 json

Heap-based buffer overflow in the ensure_solid_xref function in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 allows a remote attacker to potentia…

published 2018-01-22 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-9005

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.7%
EPSS 2.7% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

Heap-based buffer overflow in the ensure_solid_xref function in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 allows a remote attacker to potentially execute arbitrary code via a crafted PDF file, because xref subsection object numbers are unrestricted.

Patch / fix

  • mupdf openSUSE Tumbleweed 1.18.0-1.7

opensuse advisories openSUSE-SU-2024:11068-1

  • mupdf Alpine 3.24, Alpine 3.23, Alpine 3.22 +15 more 1.13-r0

alpine advisories ALPINE-CVE-2017-17858

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • mupdf-tools Arch Linux 1.12.0-2
  • libmupdf Arch Linux 1.12.0-2
  • mupdf-gl Arch Linux 1.12.0-2
  • mupdf Arch Linux 1.12.0-2
  • zathura-pdf-mupdf Arch Linux 0.3.2-2

arch linux advisories AVG-599AVG-600

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-17858 updated cvss 4.4

mupdf: Heap-based buffer overflow in pdf/pdf-xref.c:ensure_solid_xref() could allow an attacker to execute arbitrary code via a crafted PDF file

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.73% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/mzet-/Security-Advisories/blob/master/mzet-adv-2017-01.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.