PT-2023-2376 · Liblouis+7 · Liblouis+7

Marsman1996 · Published 2023-02-04 · Updated 2025-01-20 · CVE-2023-26767

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Liblouis version 3.24.0

Description The issue is related to a buffer overflow vulnerability in the lou logFile function of the Liblouis translator, which is caused by copying a buffer without checking the size of the input data. This can be exploited by a remote attacker to cause a denial of service. The vulnerability is associated with the lou logFile function at the logginc.c endpoint.

Recommendations For Liblouis version 3.24.0, consider disabling the lou logFile function as a temporary workaround until a patch is available. Restrict access to the logginc.c endpoint to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Resource Exhaustion

Buffer Overflow

Weakness Enumeration

CWE-400

CWE-120

Related Identifiers

ALSA-2023:6385

AZL-25654

BDU:2023-02151

CVE-2023-26767

INFSA-2023_6385

OPENSUSE-SU-2024:12815-1

RHSA-2023:6385

RHSA-2023_6385

SUSE-SU-2023:1771-1

SUSE-SU-2023:1772-1

SUSE-SU-2023:1773-1

SUSE-SU-2023:1824-1

SUSE-SU-2023_1771-1

SUSE-SU-2023_1772-1

SUSE-SU-2023_1773-1

SUSE-SU-2023_1824-1

USN-5996-1

USN-5996-2

Affected Products

Almalinux

Debian

Liblouis

Linuxmint

Red Hat

Red Os

Suse

Ubuntu

References · 52

• 🔥 https://github.com/liblouis/liblouis/issues/1292 · Exploit
• https://github.com/liblouis/liblouis/pull/1297 · Patch
• https://errata.almalinux.org/9/ALSA-2023-6385.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5996-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-26767 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-26767 · Security Note
• http://repo.red-soft.ru/redos/7.3c/x86_64/updates · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-02151 · Security Note
• https://ubuntu.com/security/CVE-2023-26767 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:1772-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-5996-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-26767 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-25654 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2023:6385 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-26767 · Security Note