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Fencer Intel
high 7.8

CVE-2019-18218 json

cdf_read_property_info in cdf.c in file through 5.37 does not restrict the number of CDF_VECTOR elements, which allows a heap-based buffer…

published 7y ago modified 4mo ago also EUVD-2019-8018

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

cdf_read_property_info in cdf.c in file through 5.37 does not restrict the number of CDF_VECTOR elements, which allows a heap-based buffer overflow (4-byte out-of-bounds write).

Patch / fix

  • file Debian 14, Debian 13, Debian 12 1:5.37-6

debian advisories DEBIAN-CVE-2019-18218

  • file Ubuntu 16.04 LTS 1:5.25-2ubuntu1.3
  • file Ubuntu 18.04 LTS 1:5.32-2ubuntu0.3
  • file Ubuntu Pro 14.04 LTS 1:5.14-2ubuntu3.4+esm1

ubuntu advisories UBUNTU-CVE-2019-18218

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

  • file RHEL 8 5.33-20.el8
  • file-libs RHEL 8 5.33-20.el8
  • python3-magic RHEL 8 5.33-20.el8

red hat advisories RHSA-2021:4374

  • file SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +11 more 5.22-10.21.1
  • python-magic SLE Software Development Kit 12 SP5 5.22-10.21.1
  • file SLE Module for Basesystem 15 SP1 5.32-7.8.1
  • python-magic SLE Module for Python 2 15 SP1, SLE Module for Development Tools 15 SP1 5.32-7.8.1

suse advisories SUSE-SU-2021:2930-1SUSE-SU-2020:1294-1

  • file openSUSE Tumbleweed 5.40-1.14
  • file openSUSE Leap 15.1 5.32-lp151.8.3.1
  • python-magic openSUSE Leap 15.1 5.32-lp151.8.3.1

opensuse advisories openSUSE-SU-2024:10755-1openSUSE-SU-2020:0677-1

  • file AlmaLinux 8 5.33-20.el8
  • file-libs AlmaLinux 8 5.33-20.el8
  • python3-magic AlmaLinux 8 5.33-20.el8

almalinux advisories ALSA-2021:4374

  • file Rocky Linux 8 5.33-20.el8

rocky linux advisories RLSA-2021:4374

  • file Alpine 3.24, Alpine 3.23, Alpine 3.22 +12 more 5.37-r1
  • file Alpine 3.8, Alpine 3.7 5.32-r2
  • file Alpine 3.9 5.36-r1

alpine advisories ALPINE-CVE-2019-18218

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

  • file Arch Linux 5.38-1

arch linux advisories AVG-1083

Is CVE-2019-18218 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2019-18218 updated cvss 7.8

file: heap-based buffer overflow in cdf_read_property_info in cdf.c

  • Red Hat CodeReady Linux Builder (v. 8) file-devel 5.33-20.el8, file-debuginfo 5.33-20.el8, file-debugsource 5.33-20.el8, file-libs-debuginfo 5.33-20.el8 Red Hat Enterprise Linux BaseOS (v. 8) file 5.33-20.el8, file-libs 5.33-20.el8, python3-magic 5.33-20.el8
    fixed: vendor fix RHSA-2021:4374
  • Red Hat Enterprise Linux 5 file, php53 Red Hat Enterprise Linux 6 php, file, php-gd, php-cli, php-dba, php-fpm, +23 more Red Hat Enterprise Linux 7 php, file, php-gd, php-cli, php-dba, php-fpm, +21 more Red Hat Software Collections rh-php70-php, rh-php71-php, rh-php70-php-gd, rh-php71-php-gd, rh-php70-php-cli, rh-php70-php-dba, +52 more
    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

1.85% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16780 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/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

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.