{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright © Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An update for libtiff is now available for Red Hat Enterprise Linux 8.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.", "title": "Topic" }, { "category": "general", "text": "The libtiff packages contain a library of functions for manipulating Tagged Image File Format (TIFF) files.\n\nSecurity Fix(es):\n\n* libtiff: libtiff: Arbitrary code execution or denial of service via signed integer overflow in TIFF file processing (CVE-2026-4775)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "title": "Details" }, { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2026:16055", "url": "https://access.redhat.com/errata/RHSA-2026:16055" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "2450768", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450768" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_16055.json" } ], "title": "Red Hat Security Advisory: libtiff security update", "tracking": { "current_release_date": "2026-06-30T04:20:58+00:00", "generator": { "date": "2026-06-30T04:20:58+00:00", "engine": { "name": "Red Hat SDEngine", "version": "5.3.0" } }, "id": "RHSA-2026:16055", "initial_release_date": "2026-05-11T20:52:46+00:00", "revision_history": [ { "date": "2026-05-11T20:52:46+00:00", "number": "1", "summary": "Initial version" }, { "date": "2026-05-11T20:52:46+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2026-06-30T04:20:58+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux AppStream (v. 8)", "product": { "name": "Red Hat Enterprise Linux AppStream (v. 8)", "product_id": 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"libtiff-tools-debuginfo-0:4.0.9-37.el8_10.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 8)", "product_id": "CRB-8.10.0.Z.MAIN.EUS:libtiff-tools-debuginfo-0:4.0.9-37.el8_10.x86_64" }, "product_reference": "libtiff-tools-debuginfo-0:4.0.9-37.el8_10.x86_64", "relates_to_product_reference": "CRB-8.10.0.Z.MAIN.EUS" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "Quang Luong", "PrymEvol" ] } ], "cve": "CVE-2026-4775", "cwe": { "id": "CWE-190", "name": "Integer Overflow or Wraparound" }, "discovery_date": "2026-03-24T14:23:23.826000+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2450768" } ], "notes": [ { "category": "description", "text": "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": "Vulnerability description" }, { "category": "summary", "text": "libtiff: libtiff: Arbitrary code execution or denial of service via signed integer overflow in TIFF file processing", "title": "Vulnerability summary" }, { "category": "other", "text": "A flaw in the libtiff library, affecting the processing of specially crafted TIFF files, could lead to a denial of service or potentially arbitrary code execution. This vulnerability, caused by a signed integer overflow during TIFF image processing, results in an out-of-bounds heap write. Red Hat products that process untrusted TIFF files using libtiff may be impacted.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.10.0.Z.MAIN.EUS:libtiff-0:4.0.9-37.el8_10.aarch64", "AppStream-8.10.0.Z.MAIN.EUS:libtiff-0:4.0.9-37.el8_10.i686", "AppStream-8.10.0.Z.MAIN.EUS:libtiff-0:4.0.9-37.el8_10.ppc64le", "AppStream-8.10.0.Z.MAIN.EUS:libtiff-0:4.0.9-37.el8_10.s390x", "AppStream-8.10.0.Z.MAIN.EUS:libtiff-0:4.0.9-37.el8_10.src", "AppStream-8.10.0.Z.MAIN.EUS:libtiff-0:4.0.9-37.el8_10.x86_64", "AppStream-8.10.0.Z.MAIN.EUS:libtiff-debuginfo-0:4.0.9-37.el8_10.aarch64", "AppStream-8.10.0.Z.MAIN.EUS:libtiff-debuginfo-0:4.0.9-37.el8_10.i686", 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