PT-2023-4905 · Libtiff+2 · Libtiff+2

Published 2023-06-14 · Updated 2025-06-26 · CVE-2023-25434

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

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

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 extractcontigsamplesbytes() function of the libtiff library. This can be exploited by a remote attacker to impact the confidentiality, integrity, and availability of protected information. The vulnerable function is located at /libtiff/tools/tiffcrop.c:3215.

Recommendations For libtiff version 4.5.0, consider disabling the extractcontigsamplesbytes() function as a temporary workaround until a patch is available. Restrict access to the vulnerable 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-27166

BDU:2023-05398

CVE-2023-25434

Affected Products

Alt Linux

Astra Linux

Libtiff

References · 16

• 🔥 https://gitlab.com/libtiff/libtiff/-/issues/519 · Exploit
• https://osv.dev/vulnerability/AZL-27166 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-25434 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-25434 · Security Note
• https://osv.dev/vulnerability/CVE-2023-25434 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-25434 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-25434 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-05398 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-25434 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-25434 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-25434 · Vendor Advisory
• https://docs.bell-sw.com/security/cves/CVE-2023-25434 · Note
• https://gitlab.com/libtiff/libtiff/-/commit/69818e2f2d246e6631ac2a2da692c3706b849c38 · Note
• https://access.redhat.com/security/cve/CVE-2023-25434 · Note
• https://gitlab.com/libtiff/libtiff/-/merge_requests/465 · Note