{ "document": { "aggregate_severity": { "text": "Medium" }, "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/centos6els/vex/2023/cve-2023-21830-els_os-centos6els.json" } ], "tracking": { "current_release_date": "2026-08-03T13:35:53Z", "generator": { "date": "2026-08-03T13:35:53Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2023-21830-ELS_OS-CENTOS6ELS", "initial_release_date": "2023-01-18T00:15:00Z", "revision_history": [ { "date": "2023-01-18T00:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-08-01T19:56:17Z", "number": "2", "summary": "Official Publication" }, { "date": "2026-08-03T13:35:53Z", "number": "3", "summary": "Update document" } ], "status": "final", "version": "3" }, "title": "Security update on CVE-2023-21830" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Community Enterprise Operating System 6", "product": { "name": "Community Enterprise Operating System 6", "product_id": "CentOS-6", "product_identification_helper": { "cpe": "cpe:2.3:o:centos:centos:6:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Community Enterprise Operating System" }, { "branches": [ { "category": "product_version", "name": "java-1.7.0-openjdk-src-1:1.7.0.351-2.6.28.0.el6.x86_64", "product": { "name": "java-1.7.0-openjdk-src-1:1.7.0.351-2.6.28.0.el6.x86_64", "product_id": "java-1.7.0-openjdk-src-1:1.7.0.351-2.6.28.0.el6.x86_64", "product_identification_helper": { "purl": "pkg:rpm/centos/java-1.7.0-openjdk-src@1.7.0.351-2.6.28.0.el6?arch=x86_64&epoch=1" } } }, { "category": "product_version", "name": 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6", "product_id": "CentOS-6:java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.x86_64" }, "product_reference": "java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.x86_64", "relates_to_product_reference": "CentOS-6" }, { "category": "default_component_of", "full_product_name": { "name": "java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.x86_64 as a component of Community Enterprise Operating System 6", "product_id": "CentOS-6:java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.x86_64" }, "product_reference": "java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.x86_64", "relates_to_product_reference": "CentOS-6" }, { "category": "default_component_of", "full_product_name": { "name": "java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.x86_64 as a component of Community Enterprise Operating System 6", "product_id": "CentOS-6:java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.x86_64" }, "product_reference": "java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.x86_64", "relates_to_product_reference": "CentOS-6" }, { "category": "default_component_of", "full_product_name": { "name": "java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.noarch as a component of Community Enterprise Operating System 6", "product_id": "CentOS-6:java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.noarch" }, "product_reference": "java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.noarch", "relates_to_product_reference": "CentOS-6" } ] }, "vulnerabilities": [ { "cve": "CVE-2023-21830", "notes": [ { "category": "description", "text": "Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Serialization). Supported versions that are affected are Oracle Java SE: 8u351, 8u351-perf; Oracle GraalVM Enterprise Edition: 20.3.8 and 21.3.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 5.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N).", "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": { "known_affected": [ "CentOS-6:java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "CentOS-6:java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.x86_64", "CentOS-6:java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "CentOS-6:java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.x86_64", "CentOS-6:java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "CentOS-6:java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.x86_64", "CentOS-6:java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.noarch", "CentOS-6:java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.noarch", "CentOS-6:java-1.7.0-openjdk-src-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "CentOS-6:java-1.7.0-openjdk-src-1:1.7.0.351-2.6.28.0.el6.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2023-21830" }, { "category": "external", "summary": "https://security.gentoo.org/glsa/202401-25", "url": "https://security.gentoo.org/glsa/202401-25" }, { "category": "external", "summary": "https://www.oracle.com/security-alerts/cpujan2023.html", "url": "https://www.oracle.com/security-alerts/cpujan2023.html" }, { "category": "external", "summary": "https://www.oracle.com/security-alerts/cpujul2023.html", "url": "https://www.oracle.com/security-alerts/cpujul2023.html" } ], "release_date": "2023-01-18T00:15:00Z", "remediations": [ { "category": "no_fix_planned", "date": "2026-08-03T11:29:26.007873Z", "details": "This vulnerability affects the Java Serialization component only in specific builds (Oracle Java SE 8u351/8u351-perf and GraalVM EE 20.3.8/21.3.4) and applies to client-side sandboxed scenarios (Java Web Start or applets) that execute untrusted code, not to server deployments that run only trusted code. In enterprise VM/server environments where Java runs headless services and does not load sandboxed, untrusted code, there is effectively no practical exploitation path. With impact limited to low-integrity modification and no confidentiality or availability effect, this is a low operational priority.", "product_ids": [ "CentOS-6:java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "CentOS-6:java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.x86_64", "CentOS-6:java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "CentOS-6:java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.x86_64", "CentOS-6:java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "CentOS-6:java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.x86_64", "CentOS-6:java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.noarch", "CentOS-6:java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.noarch", "CentOS-6:java-1.7.0-openjdk-src-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "CentOS-6:java-1.7.0-openjdk-src-1:1.7.0.351-2.6.28.0.el6.x86_64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1" }, "products": [ "CentOS-6:java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "CentOS-6:java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.x86_64", "CentOS-6:java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "CentOS-6:java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.x86_64", "CentOS-6:java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "CentOS-6:java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.x86_64", "CentOS-6:java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.noarch", "CentOS-6:java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.noarch", "CentOS-6:java-1.7.0-openjdk-src-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "CentOS-6:java-1.7.0-openjdk-src-1:1.7.0.351-2.6.28.0.el6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ] } ] }