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Fencer Intel
high 8.8

CVE-2018-20337 json

There is a stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp in LibRaw 0.19.1.

published 2018-12-21 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-12895

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

There is a stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp in LibRaw 0.19.1. Crafted input will lead to a denial of service or possibly unspecified other impact.

Patch / fix

  • libraw Debian 14, Debian 13, Debian 12 0.19.2-1

debian advisories DEBIAN-CVE-2018-20337

  • libraw Ubuntu 18.04 LTS 0.18.8-1ubuntu0.3

ubuntu advisories UBUNTU-CVE-2018-20337

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • gdm RHEL 8 1:3.28.3-29.el8
  • gjs RHEL 8 1.56.2-4.el8
  • gtk3 RHEL 8 3.22.30-5.el8
  • gvfs RHEL 8 1.36.2-8.el8
  • vala RHEL 8 0.40.19-1.el8
  • baobab RHEL 8 3.28.0-4.el8
  • evince RHEL 8 3.28.4-4.el8
  • LibRaw RHEL 8 0.19.5-1.el8

red hat advisories RHSA-2020:1766

  • libraw SLE Workstation Extension 15 0.18.9-3.8.1

suse advisories SUSE-SU-2019:0133-1

  • libraw openSUSE Tumbleweed 0.20.2-4.1
  • libraw openSUSE Leap 15.0 0.18.9-lp150.2.6.1

opensuse advisories openSUSE-SU-2024:10980-1openSUSE-SU-2019:0094-1

  • vala AlmaLinux 8 0.40.19-1.el8
  • baobab AlmaLinux 8 3.28.0-4.el8
  • clutter AlmaLinux 8 1.26.2-8.el8
  • mozjs52 AlmaLinux 8 52.9.0-2.el8.alma
  • mozjs52 AlmaLinux 8 52.9.0-2.el8
  • mozjs60 AlmaLinux 8 60.9.0-4.el8.alma
  • mozjs60 AlmaLinux 8 60.9.0-4.el8
  • gnome-menus AlmaLinux 8 3.13.3-11.el8

almalinux advisories ALSA-2020:1766

  • baobab Rocky Linux 8 3.28.0-4.el8
  • clutter Rocky Linux 8 1.26.2-8.el8
  • mozjs52 Rocky Linux 8 52.9.0-2.el8
  • mozjs60 Rocky Linux 8 60.9.0-4.el8
  • gnome-menus Rocky Linux 8 3.13.3-11.el8
  • gnome-tweaks Rocky Linux 8 3.28.1-7.el8

rocky linux advisories RLSA-2020:1766

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-2018-20337 updated cvss 3.3

LibRaw: stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp

  • Red Hat CodeReady Linux Builder (v. 8) gvfs 1.36.2-8.el8, vala 0.40.19-1.el8, LibRaw 0.19.5-1.el8, nautilus 3.28.1-12.el8, libvncserver 0.9.11-14.el8 Red Hat Enterprise Linux AppStream (v. 8) gjs 1.56.2-4.el8, gdm 3.28.3-29.el8, gvfs 1.36.2-8.el8, gtk3 3.22.30-5.el8, baobab 3.28.0-4.el8, evince 3.28.4-4.el8, +41 more Red Hat Enterprise Linux BaseOS (v. 8) libxslt 1.1.32-4.el8, mozjs52 52.9.0-2.el8, mozjs60 60.9.0-4.el8, gsettings-desktop-schemas 3.32.0-4.el8
    fixed: vendor fix RHSA-2020:1766
  • Red Hat Enterprise Linux 7 LibRaw
    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

2.06% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/LibRaw/LibRaw/issues/192 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/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

References

Sources

Fencer Intel 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.