{ "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/oraclelinux6els/vex/2021/cve-2021-2388-els_os-oraclelinux6els.json" } ], "tracking": { "current_release_date": "2026-07-13T12:36:15Z", "generator": { "date": "2026-07-13T12:36:15Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2021-2388-ELS_OS-ORACLELINUX6ELS", "initial_release_date": "2021-07-21T15:15:00Z", "revision_history": [ { "date": "2021-07-21T15:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-07-12T12:29:49Z", "number": "2", "summary": "Official Publication" }, { "date": "2026-07-13T12:36:15Z", "number": "3", "summary": "Update document" } ], "status": "final", "version": "3" }, "title": "Security update on CVE-2021-2388" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Oracle Linux 6", "product": { "name": "Oracle Linux 6", "product_id": "Oracle-Linux-6", "product_identification_helper": { "cpe": "cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Oracle Linux" }, { "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/oracle/java-1.7.0-openjdk-src@1.7.0.351-2.6.28.0.el6?arch=x86_64&epoch=1" } } }, { "category": "product_version", "name": "java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.x86_64", "product": { "name": 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"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 Oracle Linux 6", "product_id": "Oracle-Linux-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": "Oracle-Linux-6" } ] }, "vulnerabilities": [ { "cve": "CVE-2021-2388", "notes": [ { "category": "description", "text": "Vulnerability in the Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Hotspot). Supported versions that are affected are Java SE: 8u291, 11.0.11, 16.0.1; Oracle GraalVM Enterprise Edition: 20.3.2 and 21.1.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Oracle GraalVM Enterprise Edition. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Java SE, Oracle GraalVM Enterprise Edition. 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 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).", "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": [ "Oracle-Linux-6:java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.noarch", "Oracle-Linux-6:java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.noarch", "Oracle-Linux-6:java-1.7.0-openjdk-src-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "Oracle-Linux-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-2021-2388" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2021/08/msg00011.html", "url": "https://lists.debian.org/debian-lts-announce/2021/08/msg00011.html" }, { "category": "external", "summary": "https://security.gentoo.org/glsa/202209-05", "url": "https://security.gentoo.org/glsa/202209-05" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20210723-0002/", "url": "https://security.netapp.com/advisory/ntap-20210723-0002/" }, { "category": "external", "summary": "https://www.debian.org/security/2021/dsa-4946", "url": "https://www.debian.org/security/2021/dsa-4946" }, { "category": "external", "summary": "https://www.oracle.com/security-alerts/cpujul2021.html", "url": "https://www.oracle.com/security-alerts/cpujul2021.html" }, { "category": "external", "summary": "https://www.oracle.com/security-alerts/cpuoct2021.html", "url": "https://www.oracle.com/security-alerts/cpuoct2021.html" } ], "release_date": "2021-07-21T15:15:00Z", "remediations": [ { "category": "no_fix_planned", "date": "2026-07-13T09:02:36.196396Z", "details": "CVE-2021-2388 targets the Java HotSpot sandbox and applies to client-side Java that loads untrusted code (e.g., Java Web Start or applets), not to server-side Java that executes only trusted, administrator-installed code. It also requires user interaction and has high attack complexity, conditions that don’t exist in typical headless server/VM workloads, making practical exploitation unlikely; accordingly, it can be safely deprioritized for managed enterprise server environments.", "product_ids": [ "Oracle-Linux-6:java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.noarch", "Oracle-Linux-6:java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.noarch", "Oracle-Linux-6:java-1.7.0-openjdk-src-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-src-1:1.7.0.351-2.6.28.0.el6.x86_64" ] } ], "scores": [ { "cvss_v2": { "accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P", "version": "2.0" }, "products": [ "Oracle-Linux-6:java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-1:1.7.0.351-2.6.28.0.el6.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-demo-1:1.7.0.351-2.6.28.0.el6.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-devel-1:1.7.0.351-2.6.28.0.el6.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.noarch", "Oracle-Linux-6:java-1.7.0-openjdk-javadoc-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.noarch", "Oracle-Linux-6:java-1.7.0-openjdk-src-1:1.7.0.351-2.6.28.0.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:java-1.7.0-openjdk-src-1:1.7.0.351-2.6.28.0.el6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ] } ] }