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Fencer Vulns
high 7.5

CVE-2019-18804 json

DjVuLibre 3.5.27 has a NULL pointer dereference in the function DJVU::filter_fv at IW44EncodeCodec.cpp.

published 2019-11-07 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-8508

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.7%
EPSS 3.7% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

DjVuLibre 3.5.27 has a NULL pointer dereference in the function DJVU::filter_fv at IW44EncodeCodec.cpp.

Patch / fix

  • djvulibre Debian 14, Debian 13, Debian 12 3.5.27.1-14

debian advisories DEBIAN-CVE-2019-18804

  • djvulibre Ubuntu 16.04 LTS 3.5.27.1-5ubuntu0.1
  • djvulibre Ubuntu 18.04 LTS 3.5.27.1-8ubuntu0.1

ubuntu advisories UBUNTU-CVE-2019-18804

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

  • djvulibre SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +11 more 3.5.25.3-5.9.1
  • djvulibre SLE Module for Package Hub 15 SP1, SLE Module for Package Hub 15, SLE Module for Desktop Applications 15 SP1 +1 more 3.5.27-3.8.1
  • djvulibre SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +3 more 3.5.25.3-5.6.10

suse advisories SUSE-SU-2021:1645-1SUSE-SU-2019:3033-2SUSE-SU-2020:0970-1SUSE-SU-2019:3033-1

  • djvulibre openSUSE Tumbleweed 3.5.28-3.2
  • djvulibre openSUSE Leap 15.1 3.5.27-lp151.3.6.1
  • djvulibre openSUSE Leap 15.0 3.5.27-lp150.2.6.1

opensuse advisories openSUSE-SU-2024:10719-1openSUSE-SU-2019:2576-1openSUSE-SU-2019:2574-1

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-2019-18804 updated cvss 7.5

djvulibre: null pointer dereference in function DJVU::filter_fv in IW44EncodeCodec.cpp

  • 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

3.67% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • sourceforge.net https://sourceforge.net/p/djvu/bugs/309/ referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/TeamSeri0us/pocs/blob/master/djvulibre/DJVU__filter_fv%40IW44EncodeCodec.cpp_499-43___SEGV_UNKNOW.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

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.