{ "document":{ "aggregate_severity":{ "namespace":"https://nvd.nist.gov/vuln-metrics/cvss", "text":"Critical" }, "category":"csaf_vex", "csaf_version":"2.0", "distribution":{ "tlp":{ "label":"WHITE", "url":"https:/www.first.org/tlp/" } }, "lang":"en", "notes":[ { "text":"libxml2 security update", "category":"general", "title":"Synopsis" }, { "text":"An update for libxml2 is now available for openEuler-22.03-LTS-SP4", "category":"general", "title":"Summary" }, { "text":"This library allows to manipulate XML files. It includes support to read, modify and write XML and HTML files. There is DTDs support this includes parsing and validation even with complex DtDs, either at parse time or later once the document has been modified. The output can be a simple SAX stream or and in-memory DOM like representations. In this case one can use the built-in XPath and XPointer implementation to select sub nodes or ranges. A flexible Input/Output mechanism is available, with existing HTTP and FTP modules and combined to an URI library.\n\nSecurity Fix(es):\n\nA use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors.(CVE-2025-49794)\n\nA vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, resulting in a denial of service or other possible undefined behavior due to sensitive data being corrupted in memory.(CVE-2025-49796)", "category":"general", "title":"Description" }, { "text":"An update for libxml2 is now available for openEuler-22.03-LTS-SP4.\n\nopenEuler Security has rated this update as having a security impact of critical. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section.", "category":"general", "title":"Topic" }, { "text":"Critical", "category":"general", "title":"Severity" }, { "text":"libxml2", "category":"general", "title":"Affected Component" } ], "publisher":{ "issuing_authority":"openEuler security committee", "name":"openEuler", "namespace":"https://www.openeuler.org", "contact_details":"openeuler-security@openeuler.org", "category":"vendor" }, "references":[ { "summary":"openEuler-SA-2025-1900", "category":"self", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1900" }, { "summary":"CVE-2025-49794", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-49794&packageName=libxml2" }, { "summary":"CVE-2025-49796", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-49796&packageName=libxml2" }, { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2025-49794" }, { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2025-49796" }, { "summary":"openEuler-SA-2025-1900 vex file", "category":"self", "url":"https://repo.openeuler.org/security/data/csaf/advisories/2025/csaf-openeuler-sa-2025-1900.json" } ], "title":"An update for libxml2 is now available for openEuler-22.03-LTS-SP4", "tracking":{ "initial_release_date":"2025-07-26T09:31:00+08:00", "revision_history":[ { "date":"2025-07-26T09:31:00+08:00", "summary":"Initial", "number":"1.0.0" } ], "generator":{ "date":"2025-07-26T09:31:00+08:00", "engine":{ "name":"openEuler CSAF Tool V1.0" } }, "current_release_date":"2025-07-26T09:31:00+08:00", "id":"openEuler-SA-2025-1900", "version":"1.0.0", "status":"final" } }, "product_tree":{ "branches":[ { 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"name":"libxml2-devel-2.9.14-19.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"python3-libxml2-2.9.14-19.oe2203sp4.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:python3-libxml2-2.9.14-19.oe2203sp4.x86_64", "name":"python3-libxml2-2.9.14-19.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-22.03-LTS-SP4", "product_reference":"libxml2-help-2.9.14-19.oe2203sp4.noarch.rpm", "full_product_name":{ "product_id":"openEuler-22.03-LTS-SP4:libxml2-help-2.9.14-19.oe2203sp4.noarch", "name":"libxml2-help-2.9.14-19.oe2203sp4.noarch as a component of openEuler-22.03-LTS-SP4" }, "category":"default_component_of" } ] }, "vulnerabilities":[ { "cve":"CVE-2025-49794", "notes":[ { "text":"A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors.", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-debuginfo-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-debugsource-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-devel-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:python3-libxml2-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.src", "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-debuginfo-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-debugsource-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-devel-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:python3-libxml2-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-help-2.9.14-19.oe2203sp4.noarch" ] }, "remediations":[ { "product_ids":[ "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-debuginfo-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-debugsource-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-devel-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:python3-libxml2-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.src", "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-debuginfo-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-debugsource-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-devel-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:python3-libxml2-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-help-2.9.14-19.oe2203sp4.noarch" ], "details":"libxml2 security update", "category":"vendor_fix", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1900" } ], "scores":[ { "cvss_v3":{ "baseSeverity":"CRITICAL", "baseScore":9.1, "vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H", "version":"3.1" }, "products":[ "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-debuginfo-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-debugsource-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-devel-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:python3-libxml2-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.src", "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-debuginfo-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-debugsource-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-devel-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:python3-libxml2-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-help-2.9.14-19.oe2203sp4.noarch" ] } ], "threats":[ { "details":"Critical", "category":"impact" } ], "title":"CVE-2025-49794" }, { "cve":"CVE-2025-49796", "notes":[ { "text":"A vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, resulting in a denial of service or other possible undefined behavior due to sensitive data being corrupted in memory.", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-debuginfo-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-debugsource-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-devel-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:python3-libxml2-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.src", "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-debuginfo-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-debugsource-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-devel-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:python3-libxml2-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-help-2.9.14-19.oe2203sp4.noarch" ] }, "remediations":[ { "product_ids":[ "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-debuginfo-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-debugsource-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-devel-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:python3-libxml2-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.src", "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-debuginfo-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-debugsource-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-devel-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:python3-libxml2-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-help-2.9.14-19.oe2203sp4.noarch" ], "details":"libxml2 security update", "category":"vendor_fix", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1900" } ], "scores":[ { "cvss_v3":{ "baseSeverity":"CRITICAL", "baseScore":9.1, "vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H", "version":"3.1" }, "products":[ "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-debuginfo-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-debugsource-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-devel-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:python3-libxml2-2.9.14-19.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.src", "openEuler-22.03-LTS-SP4:libxml2-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-debuginfo-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-debugsource-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-devel-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:python3-libxml2-2.9.14-19.oe2203sp4.x86_64", "openEuler-22.03-LTS-SP4:libxml2-help-2.9.14-19.oe2203sp4.noarch" ] } ], "threats":[ { "details":"Critical", "category":"impact" } ], "title":"CVE-2025-49796" } ] }