CVE-2018-17294

2018-09-2107:29:00

Debian Security Bug Tracker

security-tracker.debian.org

liblouis

denial of service

crafted input

application crash

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.002

Percentile

51.8%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Debian12allliblouis< 3.7.0-1liblouis_3.7.0-1_all.deb
Debian11allliblouis< 3.7.0-1liblouis_3.7.0-1_all.deb
Debian999allliblouis< 3.7.0-1liblouis_3.7.0-1_all.deb
Debian13allliblouis< 3.7.0-1liblouis_3.7.0-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	liblouis	< 3.7.0-1	liblouis_3.7.0-1_all.deb
Debian	11	all	liblouis	< 3.7.0-1	liblouis_3.7.0-1_all.deb
Debian	999	all	liblouis	< 3.7.0-1	liblouis_3.7.0-1_all.deb
Debian	13	all	liblouis	< 3.7.0-1	liblouis_3.7.0-1_all.deb