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Fencer Vulns
medium 6.5

CVE-2018-18064 json

cairo through 1.15.14 has an out-of-bounds stack-memory write during processing of a crafted...

published 2018-10-08 8 y ago modified 2026-07-23 3 mo ago also EUVD-2018-9803 , JLSEC-2025-13

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

cairo through 1.15.14 has an out-of-bounds stack-memory write during processing of a crafted document by WebKitGTK+ because of the interaction between cairo-rectangular-scan-converter.c (the generate and render_rows functions) and cairo-image-compositor.c (the _cairo_image_spans_and_zero function).

Patch / fix

  • julia Cairo_jll 1.16.0+0

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-2018-18064 updated cvss 6.3

cairo: Stack-based buffer overflow via parsing of crafted WebKitGTK+ document

  • Red Hat Enterprise Linux 6 firefox, thunderbird, chromium-browser Red Hat Enterprise Linux 7 cairo, cairo-tools, cairo-gobject Red Hat Enterprise Linux 8 cairo, cairo-gobject, mingw32-cairo, mingw64-cairo
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux 5 cairo Red Hat Enterprise Linux 6 cairo
    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

1.48% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gitlab.freedesktop.org https://gitlab.freedesktop.org/cairo/cairo/issues/341 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P
OSV 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
julia Cairo_jll
<1.16.0+0
1.16.0+0

Classification

Weakness

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.