{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Moderate" }, "category": "csaf_vex", "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": "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": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4367.json" } ], "title": "libXpm: libXpm: Denial of Service via out-of-bounds read in XPM file parsing", "tracking": { "current_release_date": "2026-07-02T17:15:41+00:00", "generator": { "date": "2026-07-02T17:15:41+00:00", "engine": { "name": "Red Hat SDEngine", "version": "5.3.1" } }, "id": "CVE-2026-4367", "initial_release_date": "2026-04-21T13:26:00+00:00", "revision_history": [ { "date": "2026-04-21T13:26:00+00:00", "number": "1", "summary": "Initial version" }, { "date": "2026-07-02T16:50:54+00:00", "number": "2", "summary": "Current version" }, { "date": "2026-07-02T17:15:41+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 10", "product": { "name": "Red Hat Enterprise Linux 10", "product_id": "red_hat_enterprise_linux_10", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:10" } } } ], "category": "product_family", "name": "Red Hat Enterprise Linux 10" }, { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux 6", "product": { "name": "Red Hat Enterprise Linux 6", "product_id": "red_hat_enterprise_linux_6", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:6" } } } ], "category": "product_family", "name": "Red Hat Enterprise Linux 6" }, { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux 7", "product": { "name": "Red Hat Enterprise Linux 7", "product_id": "red_hat_enterprise_linux_7", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:7" } } } ], "category": "product_family", "name": "Red Hat Enterprise Linux 7" }, { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux 8", "product": { "name": "Red Hat Enterprise Linux 8", "product_id": "red_hat_enterprise_linux_8", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:8" } } } ], "category": "product_family", "name": "Red Hat Enterprise Linux 8" }, { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux 9", "product": { "name": "Red Hat Enterprise Linux 9", "product_id": "red_hat_enterprise_linux_9", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:9" } } } ], "category": "product_family", "name": "Red Hat Enterprise Linux 9" }, { "branches": [ { "category": "product_name", "name": "Red Hat Hardened Images", "product": { "name": "Red Hat Hardened Images", "product_id": "Red Hat Hardened Images", "product_identification_helper": { "cpe": "cpe:/a:redhat:hummingbird:1" } } } ], "category": "product_family", "name": "Red Hat Hardened Images" }, { "category": "product_version", "name": "libXpm-devel", "product": { "name": "libXpm-devel", "product_id": "libXpm-devel", "product_identification_helper": { "purl": "pkg:rpm/redhat/libXpm-devel" } } }, { "category": "product_version", "name": "libXpm.src", "product": { "name": "libXpm.src", "product_id": "libXpm.src", "product_identification_helper": { "purl": "pkg:rpm/redhat/libXpm?arch=src" } } }, { "category": "product_version", "name": "libXpm", "product": { "name": "libXpm", "product_id": "libXpm", "product_identification_helper": { "purl": "pkg:rpm/redhat/libXpm" } } }, { "branches": [ { "category": "product_version", "name": "libxpm-main@aarch64", "product": { "name": "libxpm-main@aarch64", "product_id": "libxpm-main@aarch64", "product_identification_helper": { "purl": "pkg:rpm/redhat/libXpm@3.5.17-7.2.hum1?arch=aarch64&distro=hummingbird-20251124&repository_id=public-hummingbird-aarch64-rpms" } } } ], "category": "architecture", "name": "aarch64" }, { "branches": [ { "category": "product_version", "name": "libxpm-main@src", "product": { "name": "libxpm-main@src", "product_id": "libxpm-main@src", "product_identification_helper": { "purl": "pkg:rpm/redhat/libXpm@3.5.17-7.2.hum1?arch=src&distro=hummingbird-20251124&repository_id=public-hummingbird-source-rpms" } } } ], "category": "architecture", "name": "src" }, { "branches": [ { "category": "product_version", "name": "libxpm-main@x86_64", "product": { "name": "libxpm-main@x86_64", "product_id": "libxpm-main@x86_64", "product_identification_helper": { "purl": "pkg:rpm/redhat/libXpm@3.5.17-7.2.hum1?arch=x86_64&distro=hummingbird-20251124&repository_id=public-hummingbird-x86_64-rpms" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "Red Hat" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "libxpm-main@aarch64 as a component of Red Hat Hardened Images", "product_id": "Red Hat Hardened Images:libxpm-main@aarch64" }, "product_reference": "libxpm-main@aarch64", "relates_to_product_reference": "Red Hat Hardened Images" }, { "category": "default_component_of", "full_product_name": { "name": "libxpm-main@src as a component of Red Hat Hardened Images", "product_id": "Red Hat Hardened Images:libxpm-main@src" }, "product_reference": "libxpm-main@src", "relates_to_product_reference": "Red Hat Hardened Images" }, { "category": "default_component_of", "full_product_name": { "name": "libxpm-main@x86_64 as a component of Red Hat Hardened Images", "product_id": "Red Hat Hardened Images:libxpm-main@x86_64" }, "product_reference": "libxpm-main@x86_64", "relates_to_product_reference": "Red Hat Hardened Images" }, { "category": "default_component_of", "full_product_name": { "name": "libXpm-devel as a component of Red Hat Enterprise Linux 10", "product_id": "red_hat_enterprise_linux_10:libXpm-devel" }, "product_reference": "libXpm-devel", "relates_to_product_reference": "red_hat_enterprise_linux_10" }, { "category": "default_component_of", "full_product_name": { "name": "libXpm.src as a component of Red Hat Enterprise Linux 10", "product_id": "red_hat_enterprise_linux_10:libXpm.src" }, "product_reference": "libXpm.src", "relates_to_product_reference": "red_hat_enterprise_linux_10" }, { "category": "default_component_of", "full_product_name": { "name": "libXpm-devel as a component of Red Hat Enterprise Linux 6", "product_id": "red_hat_enterprise_linux_6:libXpm-devel" }, "product_reference": "libXpm-devel", "relates_to_product_reference": "red_hat_enterprise_linux_6" }, { "category": "default_component_of", "full_product_name": { "name": "libXpm.src as a component of Red Hat Enterprise Linux 6", "product_id": "red_hat_enterprise_linux_6:libXpm.src" }, "product_reference": "libXpm.src", "relates_to_product_reference": "red_hat_enterprise_linux_6" }, { "category": "default_component_of", "full_product_name": { "name": "libXpm as a component of Red Hat Enterprise Linux 7", "product_id": "red_hat_enterprise_linux_7:libXpm" }, "product_reference": "libXpm", "relates_to_product_reference": "red_hat_enterprise_linux_7" }, { "category": "default_component_of", "full_product_name": { "name": "libXpm-devel as a component of Red Hat Enterprise Linux 7", "product_id": "red_hat_enterprise_linux_7:libXpm-devel" }, "product_reference": "libXpm-devel", "relates_to_product_reference": "red_hat_enterprise_linux_7" }, { "category": "default_component_of", "full_product_name": { "name": "libXpm.src as a component of Red Hat Enterprise Linux 7", "product_id": "red_hat_enterprise_linux_7:libXpm.src" }, "product_reference": "libXpm.src", "relates_to_product_reference": "red_hat_enterprise_linux_7" }, { "category": "default_component_of", "full_product_name": { "name": "libXpm as a component of Red Hat Enterprise Linux 8", "product_id": "red_hat_enterprise_linux_8:libXpm" }, "product_reference": "libXpm", "relates_to_product_reference": "red_hat_enterprise_linux_8" }, { "category": "default_component_of", "full_product_name": { "name": "libXpm-devel as a component of Red Hat Enterprise Linux 8", "product_id": "red_hat_enterprise_linux_8:libXpm-devel" }, "product_reference": "libXpm-devel", "relates_to_product_reference": "red_hat_enterprise_linux_8" }, { "category": "default_component_of", "full_product_name": { "name": "libXpm.src as a component of Red Hat Enterprise Linux 8", "product_id": "red_hat_enterprise_linux_8:libXpm.src" }, "product_reference": "libXpm.src", "relates_to_product_reference": "red_hat_enterprise_linux_8" }, { "category": "default_component_of", "full_product_name": { "name": "libXpm as a component of Red Hat Enterprise Linux 9", "product_id": "red_hat_enterprise_linux_9:libXpm" }, "product_reference": "libXpm", "relates_to_product_reference": "red_hat_enterprise_linux_9" }, { "category": "default_component_of", "full_product_name": { "name": "libXpm-devel as a component of Red Hat Enterprise Linux 9", "product_id": "red_hat_enterprise_linux_9:libXpm-devel" }, "product_reference": "libXpm-devel", "relates_to_product_reference": "red_hat_enterprise_linux_9" }, { "category": "default_component_of", "full_product_name": { "name": "libXpm.src as a component of Red Hat Enterprise Linux 9", "product_id": "red_hat_enterprise_linux_9:libXpm.src" }, "product_reference": "libXpm.src", "relates_to_product_reference": "red_hat_enterprise_linux_9" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "Naoki Wakamatsu" ], "organization": "JPCERT/CC Vulnerability Coordination Group" } ], "cve": "CVE-2026-4367", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "discovery_date": "2026-03-19T10:09:18.646000+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2448984" } ], "notes": [ { "category": "description", "text": "A flaw was found in libXpm. A local user with low privileges could exploit an Out-of-Bounds Read vulnerability in the `xpmNextWord()` function by processing a specially crafted or very small XPM (X PixMap) image file. This improper validation of file boundaries can cause an internal pointer to read beyond the file's end, leading to application crashes and Denial of Service conditions.", "title": "Vulnerability description" }, { "category": "summary", "text": "libXpm: libXpm: Denial of Service via out-of-bounds read in XPM file parsing", "title": "Vulnerability summary" }, { "category": "other", "text": "The vulnerability is assessed as Medium severity due to its impact being limited to availability. While exploitation requires local access and low privileges, it does not require user interaction. Successful exploitation can cause applications processing XPM files to crash, which may affect batch processing systems or graphical applications. The absence of confidentiality and integrity impact reduces the overall severity, but the ease of triggering the issue still presents a reliability concern.", "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": [ "Red Hat Hardened Images:libxpm-main@aarch64", "Red Hat Hardened Images:libxpm-main@src", "Red Hat Hardened Images:libxpm-main@x86_64" ], "known_affected": [ "red_hat_enterprise_linux_10:libXpm-devel", "red_hat_enterprise_linux_10:libXpm.src", "red_hat_enterprise_linux_6:libXpm-devel", "red_hat_enterprise_linux_6:libXpm.src", "red_hat_enterprise_linux_7:libXpm", "red_hat_enterprise_linux_7:libXpm-devel", "red_hat_enterprise_linux_7:libXpm.src", "red_hat_enterprise_linux_8:libXpm", "red_hat_enterprise_linux_8:libXpm-devel", "red_hat_enterprise_linux_8:libXpm.src", "red_hat_enterprise_linux_9:libXpm", "red_hat_enterprise_linux_9:libXpm-devel", "red_hat_enterprise_linux_9:libXpm.src" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-4367" }, { "category": "external", "summary": "RHBZ#2448984", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448984" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-4367", "url": "https://www.cve.org/CVERecord?id=CVE-2026-4367" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-4367", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4367" }, { "category": "external", "summary": "https://gitlab.freedesktop.org/xorg/lib/libxpm/-/commit/5448e1bd", "url": "https://gitlab.freedesktop.org/xorg/lib/libxpm/-/commit/5448e1bd" }, { "category": "external", "summary": "https://seclists.org/oss-sec/2026/q2/192", "url": "https://seclists.org/oss-sec/2026/q2/192" } ], "release_date": "2026-04-21T13:26:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2026-06-26T19:55:44+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/", "product_ids": [ "Red Hat Hardened Images:libxpm-main@aarch64", "Red Hat Hardened Images:libxpm-main@src", "Red Hat Hardened Images:libxpm-main@x86_64" ], "url": "https://access.redhat.com/errata/RHSA-2026:30354" }, { "category": "workaround", "details": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.", "product_ids": [ "Red Hat Hardened Images:libxpm-main@aarch64", "Red Hat Hardened Images:libxpm-main@src", "Red Hat Hardened Images:libxpm-main@x86_64", "red_hat_enterprise_linux_10:libXpm-devel", "red_hat_enterprise_linux_10:libXpm.src", "red_hat_enterprise_linux_6:libXpm-devel", "red_hat_enterprise_linux_6:libXpm.src", "red_hat_enterprise_linux_7:libXpm", "red_hat_enterprise_linux_7:libXpm-devel", "red_hat_enterprise_linux_7:libXpm.src", "red_hat_enterprise_linux_8:libXpm", "red_hat_enterprise_linux_8:libXpm-devel", "red_hat_enterprise_linux_8:libXpm.src", "red_hat_enterprise_linux_9:libXpm", "red_hat_enterprise_linux_9:libXpm-devel", "red_hat_enterprise_linux_9:libXpm.src" ] }, { "category": "none_available", "details": "Fix deferred", "product_ids": [ "red_hat_enterprise_linux_10:libXpm-devel", "red_hat_enterprise_linux_10:libXpm.src", "red_hat_enterprise_linux_6:libXpm-devel", "red_hat_enterprise_linux_6:libXpm.src", "red_hat_enterprise_linux_7:libXpm", "red_hat_enterprise_linux_7:libXpm-devel", "red_hat_enterprise_linux_7:libXpm.src", "red_hat_enterprise_linux_8:libXpm", "red_hat_enterprise_linux_8:libXpm-devel", "red_hat_enterprise_linux_8:libXpm.src", "red_hat_enterprise_linux_9:libXpm", "red_hat_enterprise_linux_9:libXpm-devel", "red_hat_enterprise_linux_9:libXpm.src" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "Red Hat Hardened Images:libxpm-main@aarch64", "Red Hat Hardened Images:libxpm-main@src", "Red Hat Hardened Images:libxpm-main@x86_64", "red_hat_enterprise_linux_10:libXpm-devel", "red_hat_enterprise_linux_10:libXpm.src", "red_hat_enterprise_linux_6:libXpm-devel", "red_hat_enterprise_linux_6:libXpm.src", "red_hat_enterprise_linux_7:libXpm", "red_hat_enterprise_linux_7:libXpm-devel", "red_hat_enterprise_linux_7:libXpm.src", "red_hat_enterprise_linux_8:libXpm", "red_hat_enterprise_linux_8:libXpm-devel", "red_hat_enterprise_linux_8:libXpm.src", "red_hat_enterprise_linux_9:libXpm", "red_hat_enterprise_linux_9:libXpm-devel", "red_hat_enterprise_linux_9:libXpm.src" ] } ], "threats": [ { "category": "impact", "details": "Moderate", "product_ids": [ "Red Hat Hardened Images:libxpm-main@aarch64", "Red Hat Hardened Images:libxpm-main@src", "Red Hat Hardened Images:libxpm-main@x86_64", "red_hat_enterprise_linux_10:libXpm-devel", "red_hat_enterprise_linux_10:libXpm.src", "red_hat_enterprise_linux_6:libXpm-devel", "red_hat_enterprise_linux_6:libXpm.src", "red_hat_enterprise_linux_7:libXpm", "red_hat_enterprise_linux_7:libXpm-devel", "red_hat_enterprise_linux_7:libXpm.src", "red_hat_enterprise_linux_8:libXpm", "red_hat_enterprise_linux_8:libXpm-devel", "red_hat_enterprise_linux_8:libXpm.src", "red_hat_enterprise_linux_9:libXpm", "red_hat_enterprise_linux_9:libXpm-devel", "red_hat_enterprise_linux_9:libXpm.src" ] } ], "title": "libXpm: libXpm: Denial of Service via out-of-bounds read in XPM file parsing" } ] }