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Fencer Intel
medium 6.5

CVE-2017-13743 json

There is a buffer overflow in Liblouis 3.2.0, triggered in the function _lou_showString() in utils.c, that will lead to a remote denial of…

published 2017-08-29 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-5260

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

There is a buffer overflow in Liblouis 3.2.0, triggered in the function _lou_showString() in utils.c, that will lead to a remote denial of service attack.

Patch / fix

  • liblouis Debian 14, Debian 13, Debian 12 3.3.0-1

debian advisories DEBIAN-CVE-2017-13743

  • liblouis RHEL 7 2.5.2-11.el7_4
  • liblouis-utils RHEL 7 2.5.2-11.el7_4
  • liblouis-python RHEL 7 2.5.2-11.el7_4

red hat advisories RHSA-2017:3111

  • liblouis SLES for SAP 11 SP4, SLES 11 SP4 1.7.0-1.3.3.1
  • python-louis SLES for SAP 11 SP4, SLES 11 SP4 1.7.0-1.3.3.1
  • liblouis SLES for SAP 12 SP3, SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2 +6 more 2.6.4-6.3.1
  • python-louis SLES for SAP 12 SP3, SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2 +2 more 2.6.4-6.3.1
  • python3-louis SLES for SAP 12 SP3, SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2 +4 more 2.6.4-6.3.1

suse advisories SUSE-SU-2017:2590-1SUSE-SU-2017:2570-1

  • liblouis openSUSE Tumbleweed 3.16.1-1.5

opensuse advisories openSUSE-SU-2024:10953-1

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-2017-13743 updated cvss 3.3

liblouis: Buffer overflow in the function _lou_showString()

  • Red Hat Enterprise Linux Client (v. 7) liblouis 2.5.2-11.el7_4, liblouis-python 2.5.2-11.el7_4 Red Hat Enterprise Linux Client Optional (v. 7) liblouis-utils 2.5.2-11.el7_4 Red Hat Enterprise Linux Server (v. 7) liblouis 2.5.2-11.el7_4, liblouis-python 2.5.2-11.el7_4 Red Hat Enterprise Linux Server Optional (v. 7) liblouis-utils 2.5.2-11.el7_4 Red Hat Enterprise Linux Workstation (v. 7) liblouis 2.5.2-11.el7_4, liblouis-python 2.5.2-11.el7_4 Red Hat Enterprise Linux Workstation Optional (v. 7) liblouis-utils 2.5.2-11.el7_4
    fixed: vendor fix RHSA-2017:3111

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).

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/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

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.