PT-2023-4695 · Libtiff+3 · Libtiff+3

Published 2023-06-21 · Updated 2025-06-26 · CVE-2023-25435

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions libtiff version 4.5.0

Description The issue is caused by a buffer overflow on the stack in the extractContigSamplesShifted8bits() function of the LibTIFF library, located in /libtiff/tools/tiffcrop.c. This can allow an attacker to cause a denial of service. The function extractContigSamplesShifted8bits() is specifically vulnerable at line 3753 of the tiffcrop.c file.

Recommendations For libtiff version 4.5.0, consider disabling the extractContigSamplesShifted8bits() function as a temporary workaround until a patch is available. Restrict access to the tiffcrop.c module 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

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

ALT-PU-2025-7532

ALT-PU-2025-8255

AZL-27206

BDU:2023-05116

CVE-2023-25435

OPENSUSE-SU-2024:13494-1

OPENSUSE-SU-2025_0753-1

SUSE-SU-2025:0753-1

SUSE-SU-2025_0753-1

Affected Products

Alt Linux

Astra Linux

Suse

Libtiff

References · 23

• 🔥 https://gitlab.com/libtiff/libtiff/-/issues/518 · Exploit
• https://osv.dev/vulnerability/AZL-27206 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:13494-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-25435 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-25435 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:0753-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-25435 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-25435 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-25435 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-25435 · Security Note
• https://bdu.fstec.ru/vul/2023-05116 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2023-25435 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-25435 · Vendor Advisory
• https://suse.com/security/cve/CVE-2023-25435 · Note
• https://suse.com/support/update/announcement/2025/suse-su-20250753-1 · Note