A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrect memory pointer calculations, potentially causing a denial of service (application crash) or arbitrary code execution.

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Vendors Products
Debian Linux Subscribe
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Libtiff Subscribe
Enterprise Linux Subscribe
Hardened Images Subscribe
Hummingbird Subscribe
Advisories
Source ID Title
Debian DLA Debian DLA DLA-4536-1 tiff security update
Debian DSA Debian DSA DSA-6303-1 tiff security update
Fixes

Solution

No solution given by the vendor.


Workaround

To mitigate this issue, avoid processing untrusted or maliciously crafted TIFF files with applications linked against the libtiff library. If processing untrusted TIFF files is unavoidable, consider running the affected applications within a sandboxed environment to limit the potential impact of successful exploitation. This operational control helps contain the effects of an out-of-bounds write, reducing the risk of denial of service or arbitrary code execution.

History

Thu, 07 May 2026 21:45:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:enterprise_linux:8::crb
References

Thu, 30 Apr 2026 15:00:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:9 cpe:/a:redhat:enterprise_linux:9::appstream
cpe:/a:redhat:enterprise_linux:9::crb
References

Thu, 30 Apr 2026 13:00:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:10.1
References

Tue, 21 Apr 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Debian
Debian debian Linux
Libtiff
Libtiff libtiff
Redhat hardened Images
CPEs cpe:2.3:a:libtiff:libtiff:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Vendors & Products Debian
Debian debian Linux
Libtiff
Libtiff libtiff
Redhat hardened Images

Fri, 17 Apr 2026 17:30:00 +0000

Type Values Removed Values Added
References

Thu, 09 Apr 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat hummingbird
CPEs cpe:/a:redhat:hummingbird:1
Vendors & Products Redhat hummingbird

Wed, 25 Mar 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Tue, 24 Mar 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 24 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrect memory pointer calculations, potentially causing a denial of service (application crash) or arbitrary code execution.
Title Libtiff: libtiff: arbitrary code execution or denial of service via signed integer overflow in tiff file processing
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-190
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-05-07T21:24:46.165Z

Reserved: 2026-03-24T14:26:05.988Z

Link: CVE-2026-4775

cve-icon Vulnrichment

Updated: 2026-04-17T16:20:28.027Z

cve-icon NVD

Status : Modified

Published: 2026-03-24T15:16:39.693

Modified: 2026-05-07T22:16:36.070

Link: CVE-2026-4775

cve-icon Redhat

Severity : Important

Publid Date: 2026-03-24T14:33:35Z

Links: CVE-2026-4775 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-04-10T09:46:15Z

Weaknesses