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CVE-2018-17294

The matchCurrentInput function inside lou_translateString.c of Liblouis prior to 3.7 does not...

6.5 MediumFix available

The matchCurrentInput function inside lou_translateString.c of Liblouis prior to 3.7 does not check the input string's length, allowing attackers to cause a denial of service (application crash via out-of-bounds read) by crafting an input file with certain translation dictionaries.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

2.72%Up 1.2 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.5

The matchCurrentInput function inside lou_translateString.c of Liblouis prior to 3.7 does not check the input string's length, allowing attackers to cause a denial of service (application crash via out-of-bounds read) by crafting an input file with certain translation dictionaries.

Record
CVE-2018-17294
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness
CWE-125
Updated
2026-11-02
CVE List No score

The matchCurrentInput function inside lou_translateString.c of Liblouis prior to 3.7 does not check the input string's length, allowing attackers to cause a denial of service (application crash via out-of-bounds read) by crafting an input file with certain translation dictionaries.

Record
CVE-2018-17294
Updated
2026-11-02
EUVDEUVD-2018-9050 No score

The matchCurrentInput function inside lou_translateString.c of Liblouis prior to 3.7 does not check the input string's length, allowing attackers to cause a denial of service (application crash via out-of-bounds read) by crafting an input file with certain translation dictionaries.

Record
EUVD-2018-9050
Updated
2026-11-03
GitHub AdvisoriesGHSA-xg7f-9m4r-jh69 6.5

The matchCurrentInput function inside lou_translateString.c of Liblouis prior to 3.7 does not...

The matchCurrentInput function inside lou_translateString.c of Liblouis prior to 3.7 does not check the input string's length, allowing attackers to cause a denial of service (application crash via out-of-bounds read) by crafting an input file with certain translation dictionaries.

Record
GHSA-xg7f-9m4r-jh69
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
OSV 6.5

The matchCurrentInput function inside lou_translateString.c of Liblouis prior to 3.7 does not check the input string's length, allowing attackers to cause a denial of service (application crash via out-of-bounds read) by crafting an input file with certain translation dictionaries.

Record
CVE-2018-17294
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2018-17294 6.5

The matchCurrentInput function inside lou_translateString.c of Liblouis prior to 3.7 does not check the input string's length, allowing attackers to cause a denial of service (application crash via out-of-bounds read) by crafting an input file with certain translation dictionaries.

Record
DEBIAN-CVE-2018-17294
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 6 moreShow less
OSVUBUNTU-CVE-2018-17294 6.5

The matchCurrentInput function inside lou_translateString.c of Liblouis prior to 3.7 does not check the input string's length, allowing attackers to cause a denial of service (application crash via out-of-bounds read) by crafting an input file with certain translation dictionaries.

Record
UBUNTU-CVE-2018-17294
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2019:1160-1 No score

Security update for liblouis

This update for liblouis fixes the following issues:

Security issues fixed:

  • CVE-2018-17294: Fixed an out of bounds read in matchCurrentInput function which could allow a remote attacker to cause Denail of Service (bsc#1109319).
  • CVE-2018-11410: Fixed an invalid free in the compileRule function in compileTranslationTable.c (bsc#1094685)
  • CVE-2018-11440: Fixed a stack-based buffer overflow in the function parseChars() in compileTranslationTable.c (bsc#1095189)
  • CVE-2018-11577: Fixed a segmentation fault in lou_logPrint in logging.c (bsc#1095945)
  • CVE-2018-11683: Fixed a stack-based buffer overflow in the function parseChars() in compileTranslationTable.c (different vulnerability than CVE-2018-11440) (bsc#1095827)
  • CVE-2018-11684: Fixed stack-based buffer overflow in the function includeFile() in compileTranslationTable.c (bsc#1095826)
  • CVE-2018-11685: Fixed a stack-based buffer overflow in the function compileHyphenation() in compileTranslationTable.c (bsc#1095825)
  • CVE-2018-12085: Fixed a stack-based buffer overflow in the function parseChars() in compileTranslationTable.c (different vulnerability than CVE-2018-11440) (bsc#1097103)

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2019:1160-1
Updated
2026-11-02
OSVSUSE-SU-2019:0795-1 No score

Security update for liblouis

This update for liblouis fixes the following issues:

Security issues fixed:

  • CVE-2018-17294: Fixed an out of bounds read in matchCurrentInput function which could allow a remote attacker to cause Denail of Service (bsc#1109319).
  • CVE-2018-11410: Fixed an invalid free in the compileRule function in compileTranslationTable.c (bsc#1094685)
  • CVE-2018-11440: Fixed a stack-based buffer overflow in the function parseChars() in compileTranslationTable.c (bsc#1095189)
  • CVE-2018-11577: Fixed a segmentation fault in lou_logPrint in logging.c (bsc#1095945)
  • CVE-2018-11683: Fixed a stack-based buffer overflow in the function parseChars() in compileTranslationTable.c (different vulnerability than CVE-2018-11440) (bsc#1095827)
  • CVE-2018-11684: Fixed stack-based buffer overflow in the function includeFile() in compileTranslationTable.c (bsc#1095826)
  • CVE-2018-11685: Fixed a stack-based buffer overflow in the function compileHyphenation() in compileTranslationTable.c (bsc#1095825)
  • CVE-2018-12085: Fixed a stack-based buffer overflow in the function parseChars() in compileTranslationTable.c (different vulnerability than CVE-2018-11440) (bsc#1097103)
Record
SUSE-SU-2019:0795-1
Updated
2026-11-02
OSVSUSE-SU-2019:13994-1 No score

Security update for liblouis

This update for liblouis and python-louis fixes the following issue:

Security issue fixed:

  • CVE-2018-17294: Fixed an out of bounds read in matchCurrentInput function which could allow a remote attacker to cause Denail of Service (bsc#1109319).
Record
SUSE-SU-2019:13994-1
Updated
2026-11-02
OSVSUSE-SU-2020:3107-1 No score

Security update for liblouis

This update for liblouis, python-luis and python3-louis fixes the following issue:

Security issue fixed:

  • CVE-2018-17294: Fixed an out of bounds read in matchCurrentInput function which could allow a remote attacker to cause Denail of Service (bsc#1109319).
Record
SUSE-SU-2020:3107-1
Updated
2026-11-02
OSVUSN-3782-1 No score

liblouis vulnerabilities

Henri Salo discovered that Liblouis incorrectly handled certain files. An attacker could possibly use this issue to execute arbitrary code. (CVE-2018-12085)

It was discovered that Liblouis incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-17294)

Record
USN-3782-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
liblouis
Debian:12
 before 3.7.0-1
3.7.0-1
liblouis
Debian:13
 before 3.7.0-1
3.7.0-1
liblouis
Debian:14
 before 3.7.0-1
3.7.0-1
liblouis
SUSE:Linux Enterprise Module for Desktop Applications 15
 before 3.3.0-4.5.1
3.3.0-4.5.1
liblouis
SUSE:Linux Enterprise Server 11 SP4
 before 1.7.0-1.3.16.1
1.7.0-1.3.16.1
python-louis
SUSE:Linux Enterprise Server 11 SP4
 before 1.7.0-1.3.16.1
1.7.0-1.3.16.1
liblouis
SUSE:Linux Enterprise Server for SAP Applications 11 SP4
 before 1.7.0-1.3.16.1
1.7.0-1.3.16.1
python-louis
SUSE:Linux Enterprise Server for SAP Applications 11 SP4
 before 1.7.0-1.3.16.1
1.7.0-1.3.16.1
liblouis
SUSE:Linux Enterprise Software Development Kit 12 SP5
 before 2.6.4-6.9.24
2.6.4-6.9.24
liblouis
SUSE:Linux Enterprise Server 12 SP5
 before 2.6.4-6.9.24
2.6.4-6.9.24
Show 9 moreShow less
Affected packages
PackageAffectedFixed
python-louis
SUSE:Linux Enterprise Server 12 SP5
 before 2.6.4-6.9.39
2.6.4-6.9.39
python3-louis
SUSE:Linux Enterprise Server 12 SP5
 before 2.6.4-6.9.41
2.6.4-6.9.41
liblouis
SUSE:Linux Enterprise Server for SAP Applications 12 SP5
 before 2.6.4-6.9.24
2.6.4-6.9.24
python-louis
SUSE:Linux Enterprise Server for SAP Applications 12 SP5
 before 2.6.4-6.9.39
2.6.4-6.9.39
python3-louis
SUSE:Linux Enterprise Server for SAP Applications 12 SP5
 before 2.6.4-6.9.41
2.6.4-6.9.41
liblouis
Ubuntu:18.04:LTS
 before 3.5.0-1ubuntu0.3, plus listed versions
3.0.0-3ubuntu13.3.0-13.4.1-13.5.0-13.5.0-1ubuntu0.13.5.0-1ubuntu0.2
3.5.0-1ubuntu0.3
liblouis
Ubuntu:14.04:LTS
 before 2.5.3-2ubuntu1.5, plus listed versions
2.5.3-22.5.3-2ubuntu12.5.3-2ubuntu1.12.5.3-2ubuntu1.22.5.3-2ubuntu1.32.5.3-2ubuntu1.4
2.5.3-2ubuntu1.5
liblouis
Ubuntu:16.04:LTS
 before 2.6.4-2ubuntu0.4, plus listed versions
2.6.2-22.6.4-22.6.4-2ubuntu0.12.6.4-2ubuntu0.22.6.4-2ubuntu0.3
2.6.4-2ubuntu0.4
liblouis
openSUSE:Leap 15.0
 before 3.3.0-lp150.3.3.1
3.3.0-lp150.3.3.1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-17294 is a medium vulnerability (CVSS 6.5) in Liblouis, published September 21, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.72%, the 86th percentile. Fixed in liblouis 3.7.0-1.

References

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