{ "document": { "aggregate_severity": { "text": "Critical" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "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 Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" }, { "category": "details", "text": "* SECURITY UPDATE: out-of-bound read with negative pixel index in UIL and\n XPM encoders\n - debian/patches/CVE-2026-25898.patch: add bounds check on pixel index\n value returned by GetPixelIndex before using as array subscript\n - CVE-2026-25898\n * SECURITY UPDATE: heap use-after-free in MSL repage and roll handlers\n - debian/patches/CVE-2026-25983.patch: move null check before accessing\n image properties in repage and roll element handlers\n - CVE-2026-25983\n * SECURITY UPDATE: stack overflow via infinite recursion in MSL write handler\n - debian/patches/CVE-2026-25971.patch: check output format before calling\n WriteImage to prevent recursive MSL processing\n - CVE-2026-25971", "title": "Details" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "https://cve.tuxcare.com/els/releases/CLSA-2026:1774010101", "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1774010101" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/ubuntu20.04els/advisories/2026/clsa-2026_1774010101.json" } ], "tracking": { "current_release_date": "2026-03-20T12:36:35Z", "generator": { "date": "2026-03-20T12:36:35Z", "engine": { "name": "pyCSAF" } }, "id": "CLSA-2026:1774010101", "initial_release_date": "2026-03-20T12:36:35Z", "revision_history": [ { "date": "2026-03-20T12:36:35Z", "number": "1", "summary": "Initial version" } ], "status": "final", "version": "1" }, "title": "Fix CVE(s): CVE-2026-25898, CVE-2026-25971, CVE-2026-25983" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Ubuntu 20.04", "product": { "name": "Ubuntu 20.04", "product_id": "Ubuntu-20", "product_identification_helper": { "cpe": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*" } } } ], "category": "product_family", "name": "Ubuntu" } ], "category": "vendor", "name": "Canonical Ltd." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "libmagickwand-6.q16-6-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "product": { "name": "libmagickwand-6.q16-6-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "product_id": "libmagickwand-6.q16-6-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/libmagickwand-6.q16-6@6.9.10.23%2Bdfsg-2.1ubuntu11.11%2Btuxcare.els18?arch=amd64" } } }, { "category": "product_version", "name": "libmagick++-6.q16hdri-8-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "product": { "name": "libmagick++-6.q16hdri-8-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "product_id": 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Prior to versions 7.1.2-15 and 6.9.13-40, Magick fails to check for circular references between two MSLs, leading to a stack overflow. Versions 7.1.2-15 and 6.9.13-40 contain a patch.", "title": "Vulnerability description" }, { "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": [ "Ubuntu-20:imagemagick-6-common-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:imagemagick-6-doc-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:imagemagick-6.q16-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "Ubuntu-20:imagemagick-6.q16hdri-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "Ubuntu-20:imagemagick-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "Ubuntu-20:imagemagick-common-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:imagemagick-doc-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", 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"Ubuntu-20:libmagickwand-6.q16hdri-dev-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "Ubuntu-20:libmagickwand-dev-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:perlmagick-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-25971" }, { "category": "external", "summary": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8mpr-6xr2-chhc", "url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8mpr-6xr2-chhc" } ], "release_date": "2026-02-24T02:16:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-03-20T12:35:03.744538Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1774010101", "product_ids": [ "Ubuntu-20:imagemagick-6-common-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", 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"CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "Ubuntu-20:imagemagick-6-common-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:imagemagick-6-doc-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:imagemagick-6.q16-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "Ubuntu-20:imagemagick-6.q16hdri-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "Ubuntu-20:imagemagick-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "Ubuntu-20:imagemagick-common-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:imagemagick-doc-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:libimage-magick-perl-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:libimage-magick-q16-perl-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", 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"Ubuntu-20:perlmagick-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all" ] } ], "threats": [ { "category": "impact", "details": "Critical" } ] }, { "cve": "CVE-2026-25983", "cwe": { "id": "CWE-416", "name": "Use After Free" }, "notes": [ { "category": "description", "text": "ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a crafted MSL script triggers a heap-use-after-free. The operation element handler replaces and frees the image while the parser continues reading from it, leading to a UAF in ReadBlobString during further parsing. Versions 7.1.2-15 and 6.9.13-40 contain a patch.", "title": "Vulnerability description" }, { "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": [ "Ubuntu-20:imagemagick-6-common-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:imagemagick-6-doc-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:imagemagick-6.q16-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "Ubuntu-20:imagemagick-6.q16hdri-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "Ubuntu-20:imagemagick-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "Ubuntu-20:imagemagick-common-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:imagemagick-doc-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", 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Prior to versions 7.1.2-15 and 6.9.13-40, the UIL and XPM image encoder do not validate the pixel index value returned by `GetPixelIndex()` before using it as an array subscript. In HDRI builds, `Quantum` is a floating-point type, so pixel index values can be negative. An attacker can craft an image with negative pixel index values to trigger a global buffer overflow read during conversion, leading to information disclosure or a process crash. Versions 7.1.2-15 and 6.9.13-40 contain a patch.", "title": "Vulnerability description" }, { "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": [ "Ubuntu-20:imagemagick-6-common-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:imagemagick-6-doc-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:imagemagick-6.q16-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "Ubuntu-20:imagemagick-6.q16hdri-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "Ubuntu-20:imagemagick-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.amd64", "Ubuntu-20:imagemagick-common-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", "Ubuntu-20:imagemagick-doc-8:6.9.10.23+dfsg-2.1ubuntu11.11+tuxcare.els18.all", 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