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Fencer Vulns
high 8.8

CVE-2018-11577 json

Liblouis 3.5.0 has a Segmentation fault in lou_logPrint in logging.c.

published 2018-05-31 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-3603

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

Liblouis 3.5.0 has a Segmentation fault in lou_logPrint in logging.c.

Patch / fix

  • liblouis Debian 14, Debian 13, Debian 12 3.5.0-3

debian advisories DEBIAN-CVE-2018-11577

  • liblouis Ubuntu 14.04 LTS 2.5.3-2ubuntu1.3
  • liblouis Ubuntu 16.04 LTS 2.6.4-2ubuntu0.2
  • liblouis Ubuntu 18.04 LTS 3.5.0-1ubuntu0.1

ubuntu advisories UBUNTU-CVE-2018-11577

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

  • liblouis RHEL 8 2.6.2-21.el8
  • python3-louis RHEL 8 2.6.2-21.el8

red hat advisories RHSA-2020:1708

  • liblouis SLE Module for Desktop Applications 15 3.3.0-4.5.1
  • liblouis SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 +1 more 2.6.4-6.6.1
  • python-louis SLES for SAP 12 SP3, SLES 12 SP3 2.6.4-6.6.1
  • python3-louis SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 2.6.4-6.6.1

suse advisories SUSE-SU-2019:0795-1SUSE-SU-2018:2780-1

  • liblouis openSUSE Leap 15.0 3.3.0-lp150.3.3.1

opensuse advisories openSUSE-SU-2019:1160-1

  • liblouis AlmaLinux 8 2.6.2-21.el8
  • python3-louis AlmaLinux 8 2.6.2-21.el8

almalinux advisories ALSA-2020:1708

  • liblouis Rocky Linux 8 2.6.2-21.el8

rocky linux advisories RLSA-2020:1708

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-2018-11577 updated cvss 4.3

liblouis: Segmentation fault in logging.c:lou_logPrint()

  • Red Hat Enterprise Linux 7 liblouis, liblouis-utils, liblouis-python
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux AppStream (v. 8) liblouis 2.6.2-21.el8, python3-louis 2.6.2-21.el8
    fixed: vendor fix RHSA-2020:1708

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

2.54% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/Edward-L/fuzzing-pocs/tree/master/liblouis referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/liblouis/liblouis/issues/582 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
  • CWE-120 Buffer Copy without Checking Size of Input

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.