{ "document": { "aggregate_severity": { "text": "High" }, "category": "csaf_vex", "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" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/ubuntu20.04els/vex/2026/cve-2026-22695-els_os-ubuntu20_04els.json" } ], "tracking": { "current_release_date": "2026-05-04T17:54:43Z", "generator": { "date": "2026-05-04T17:54:43Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-22695-ELS_OS-UBUNTU20.04ELS", "initial_release_date": "2026-01-12T23:15:00Z", "revision_history": [ { "date": "2026-01-12T23:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-05-04T17:54:43Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on CVE-2026-22695" }, "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": "libpng16-16-0:1.6.37-2+tuxcare.els2.amd64", "product": { "name": "libpng16-16-0:1.6.37-2+tuxcare.els2.amd64", "product_id": "libpng16-16-0:1.6.37-2+tuxcare.els2.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/libpng16-16@1.6.37-2%2Btuxcare.els2?arch=amd64" } } }, { "category": "product_version", "name": "libpng-dev-0:1.6.37-2+tuxcare.els2.amd64", "product": { "name": "libpng-dev-0:1.6.37-2+tuxcare.els2.amd64", "product_id": "libpng-dev-0:1.6.37-2+tuxcare.els2.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/libpng-dev@1.6.37-2%2Btuxcare.els2?arch=amd64" } } }, { "category": "product_version", "name": "libpng-tools-0:1.6.37-2+tuxcare.els2.amd64", "product": { "name": "libpng-tools-0:1.6.37-2+tuxcare.els2.amd64", "product_id": "libpng-tools-0:1.6.37-2+tuxcare.els2.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/libpng-tools@1.6.37-2%2Btuxcare.els2?arch=amd64" } } } ], "category": "architecture", "name": "amd64" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "libpng16-16-0:1.6.37-2+tuxcare.els2.amd64 as a component of Ubuntu 20.04", "product_id": "Ubuntu-20:libpng16-16-0:1.6.37-2+tuxcare.els2.amd64" }, "product_reference": "libpng16-16-0:1.6.37-2+tuxcare.els2.amd64", "relates_to_product_reference": "Ubuntu-20" }, { "category": "default_component_of", "full_product_name": { "name": "libpng-dev-0:1.6.37-2+tuxcare.els2.amd64 as a component of Ubuntu 20.04", "product_id": "Ubuntu-20:libpng-dev-0:1.6.37-2+tuxcare.els2.amd64" }, "product_reference": "libpng-dev-0:1.6.37-2+tuxcare.els2.amd64", "relates_to_product_reference": "Ubuntu-20" }, { "category": "default_component_of", "full_product_name": { "name": "libpng-tools-0:1.6.37-2+tuxcare.els2.amd64 as a component of Ubuntu 20.04", "product_id": "Ubuntu-20:libpng-tools-0:1.6.37-2+tuxcare.els2.amd64" }, "product_reference": "libpng-tools-0:1.6.37-2+tuxcare.els2.amd64", "relates_to_product_reference": "Ubuntu-20" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-22695", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.51 to 1.6.53, there is a heap buffer over-read in the libpng simplified API function png_image_finish_read when processing interlaced 16-bit PNGs with 8-bit output format and non-minimal row stride. This is a regression introduced by the fix for CVE-2025-65018. This vulnerability is fixed in 1.6.54.", "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" }, { "category": "other", "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.", "title": "Statement" } ], "product_status": { "known_not_affected": [ "Ubuntu-20:libpng-dev-0:1.6.37-2+tuxcare.els2.amd64", "Ubuntu-20:libpng-tools-0:1.6.37-2+tuxcare.els2.amd64", "Ubuntu-20:libpng16-16-0:1.6.37-2+tuxcare.els2.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-22695" }, { "category": "external", "summary": "https://github.com/pnggroup/libpng/commit/218612ddd6b17944e21eda56caf8b4bf7779d1ea", "url": "https://github.com/pnggroup/libpng/commit/218612ddd6b17944e21eda56caf8b4bf7779d1ea" }, { "category": "external", "summary": "https://github.com/pnggroup/libpng/commit/e4f7ad4ea2", "url": "https://github.com/pnggroup/libpng/commit/e4f7ad4ea2" }, { "category": "external", "summary": "https://github.com/pnggroup/libpng/issues/778", "url": "https://github.com/pnggroup/libpng/issues/778" }, { "category": "external", "summary": "https://github.com/pnggroup/libpng/security/advisories/GHSA-mmq5-27w3-rxpp", "url": "https://github.com/pnggroup/libpng/security/advisories/GHSA-mmq5-27w3-rxpp" } ], "release_date": "2026-01-12T23:15:00Z", "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H", "version": "3.1" }, "products": [ "Ubuntu-20:libpng-dev-0:1.6.37-2+tuxcare.els2.amd64", "Ubuntu-20:libpng-tools-0:1.6.37-2+tuxcare.els2.amd64", "Ubuntu-20:libpng16-16-0:1.6.37-2+tuxcare.els2.amd64" ] } ], "threats": [ { "category": "impact", "details": "Important" }, { "category": "impact", "details": "important", "product_ids": [ "Ubuntu-20:libpng-dev-0:1.6.37-2+tuxcare.els2.amd64", "Ubuntu-20:libpng-tools-0:1.6.37-2+tuxcare.els2.amd64", "Ubuntu-20:libpng16-16-0:1.6.37-2+tuxcare.els2.amd64" ] } ] } ] }