CVE-2023-52356: libtiff Heap Overflow — Fix

Description

A segment fault (SEGV) flaw was found in libtiff that could be triggered by passing a crafted tiff file to the TIFFReadRGBATileExt() API. This flaw allows a remote attacker to cause a heap-buffer overflow, leading to a denial of service.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-122 CWE-122

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
libtiff	libtiff	All
redhat	enterprise_linux	All
redhat	enterprise_linux	All

References

Advisories & Patches

https://gitlab.com/libtiff/libtiff/-/issues/622 https://gitlab.com/libtiff/libtiff/-/merge_requests/546 https://gitlab.com/libtiff/libtiff/-/issues/622 https://gitlab.com/libtiff/libtiff/-/merge_requests/546

Other References

https://access.redhat.com/errata/RHSA-2024:5079 https://access.redhat.com/errata/RHSA-2025:20801 https://access.redhat.com/errata/RHSA-2025:21994 https://access.redhat.com/errata/RHSA-2025:23078 https://access.redhat.com/errata/RHSA-2025:23079 https://access.redhat.com/errata/RHSA-2025:23080 https://access.redhat.com/errata/RHSA-2026:16174 https://access.redhat.com/errata/RHSA-2026:3461 https://access.redhat.com/errata/RHSA-2026:3462 https://access.redhat.com/errata/RHSA-2026:5958

Frequently Asked Questions

What is CVE-2023-52356? +

A segment fault (SEGV) flaw was found in libtiff that could be triggered by passing a crafted tiff file to the TIFFReadRGBATileExt() API. This flaw allows a remote attacker to cause a heap-buffer overflow, leading to a denial of service. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-52356? +

CVE-2023-52356 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-52356? +

CVE-2023-52356 affects products from libtiff, redhat, specifically: enterprise_linux, libtiff. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-52356? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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