{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright © Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.", "title": "Topic" }, { "category": "general", "text": "This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.\n\nSecurity Fix(es):\n\n* Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic (CVE-2020-10711)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "title": "Details" }, { "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 Red Hat Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2020:2125", "url": "https://access.redhat.com/errata/RHSA-2020:2125" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "1825116", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1825116" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_2125.json" } ], "title": "Red Hat Security Advisory: kpatch-patch security update", "tracking": { "current_release_date": "2026-06-28T12:13:56+00:00", "generator": { "date": "2026-06-28T12:13:56+00:00", "engine": { "name": "Red Hat SDEngine", "version": "5.2.6" } }, "id": "RHSA-2020:2125", "initial_release_date": "2020-05-13T07:47:08+00:00", "revision_history": [ { "date": "2020-05-13T07:47:08+00:00", "number": "1", "summary": "Initial version" }, { "date": "2020-05-13T07:47:08+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2026-06-28T12:13:56+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux BaseOS (v. 8)", "product": { "name": "Red Hat Enterprise Linux BaseOS (v. 8)", "product_id": "BaseOS-8.2.0.Z.MAIN.EUS", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:8::baseos" } } } ], "category": "product_family", "name": "Red Hat Enterprise Linux" }, { "branches": [ { "category": "product_version", "name": "kpatch-patch-4_18_0-193-0:1-2.el8.ppc64le", "product": { "name": "kpatch-patch-4_18_0-193-0:1-2.el8.ppc64le", "product_id": "kpatch-patch-4_18_0-193-0:1-2.el8.ppc64le", "product_identification_helper": { "purl": "pkg:rpm/redhat/kpatch-patch-4_18_0-193@1-2.el8?arch=ppc64le" } } }, { "category": "product_version", "name": "kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.ppc64le", "product": { "name": "kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.ppc64le", "product_id": "kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.ppc64le", "product_identification_helper": { "purl": "pkg:rpm/redhat/kpatch-patch-4_18_0-193-debugsource@1-2.el8?arch=ppc64le" } } }, { "category": "product_version", "name": "kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.ppc64le", "product": { "name": "kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.ppc64le", "product_id": "kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.ppc64le", "product_identification_helper": { "purl": "pkg:rpm/redhat/kpatch-patch-4_18_0-193-debuginfo@1-2.el8?arch=ppc64le" } } } ], "category": "architecture", "name": "ppc64le" }, { "branches": [ { "category": "product_version", "name": "kpatch-patch-4_18_0-193-0:1-2.el8.x86_64", "product": { "name": "kpatch-patch-4_18_0-193-0:1-2.el8.x86_64", "product_id": "kpatch-patch-4_18_0-193-0:1-2.el8.x86_64", "product_identification_helper": { "purl": "pkg:rpm/redhat/kpatch-patch-4_18_0-193@1-2.el8?arch=x86_64" } } }, { "category": "product_version", "name": "kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.x86_64", "product": { "name": "kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.x86_64", "product_id": "kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.x86_64", "product_identification_helper": { "purl": "pkg:rpm/redhat/kpatch-patch-4_18_0-193-debugsource@1-2.el8?arch=x86_64" } } }, { "category": "product_version", "name": "kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.x86_64", "product": { "name": "kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.x86_64", "product_id": "kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.x86_64", "product_identification_helper": { "purl": "pkg:rpm/redhat/kpatch-patch-4_18_0-193-debuginfo@1-2.el8?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" }, { "branches": [ { "category": "product_version", "name": "kpatch-patch-4_18_0-193-0:1-2.el8.src", "product": { "name": "kpatch-patch-4_18_0-193-0:1-2.el8.src", "product_id": "kpatch-patch-4_18_0-193-0:1-2.el8.src", "product_identification_helper": { "purl": "pkg:rpm/redhat/kpatch-patch-4_18_0-193@1-2.el8?arch=src" } } } ], "category": "architecture", "name": "src" } ], "category": "vendor", "name": "Red Hat" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "kpatch-patch-4_18_0-193-0:1-2.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)", "product_id": "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.ppc64le" }, "product_reference": "kpatch-patch-4_18_0-193-0:1-2.el8.ppc64le", "relates_to_product_reference": "BaseOS-8.2.0.Z.MAIN.EUS" }, { "category": "default_component_of", "full_product_name": { "name": "kpatch-patch-4_18_0-193-0:1-2.el8.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)", "product_id": "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.src" }, "product_reference": "kpatch-patch-4_18_0-193-0:1-2.el8.src", "relates_to_product_reference": "BaseOS-8.2.0.Z.MAIN.EUS" }, { "category": "default_component_of", "full_product_name": { "name": "kpatch-patch-4_18_0-193-0:1-2.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)", "product_id": "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.x86_64" }, "product_reference": "kpatch-patch-4_18_0-193-0:1-2.el8.x86_64", "relates_to_product_reference": "BaseOS-8.2.0.Z.MAIN.EUS" }, { "category": "default_component_of", "full_product_name": { "name": "kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)", "product_id": "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.ppc64le" }, "product_reference": "kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.ppc64le", "relates_to_product_reference": "BaseOS-8.2.0.Z.MAIN.EUS" }, { "category": "default_component_of", "full_product_name": { "name": "kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)", "product_id": "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.x86_64" }, "product_reference": "kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.x86_64", "relates_to_product_reference": "BaseOS-8.2.0.Z.MAIN.EUS" }, { "category": "default_component_of", "full_product_name": { "name": "kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)", "product_id": "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.ppc64le" }, "product_reference": "kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.ppc64le", "relates_to_product_reference": "BaseOS-8.2.0.Z.MAIN.EUS" }, { "category": "default_component_of", "full_product_name": { "name": "kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)", "product_id": "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.x86_64" }, "product_reference": "kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.x86_64", "relates_to_product_reference": "BaseOS-8.2.0.Z.MAIN.EUS" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "Matthew Sheets" ], "organization": "gd-ms.com" } ], "cve": "CVE-2020-10711", "cwe": { "id": "CWE-476", "name": "NULL Pointer Dereference" }, "discovery_date": "2020-04-17T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1825116" } ], "notes": [ { "category": "description", "text": "A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. While processing the CIPSO restricted bitmap tag in the 'cipso_v4_parsetag_rbm' routine, it sets the security attribute to indicate that the category bitmap is present, even if it has not been allocated. This issue leads to a NULL pointer dereference issue while importing the same category bitmap into SELinux. This flaw allows a remote network user to crash the system kernel, resulting in a denial of service.", "title": "Vulnerability description" }, { "category": "summary", "text": "Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic", "title": "Vulnerability summary" }, { "category": "other", "text": "This issue affects the versions of the kernel packages as shipped with the Red Hat Enterprise Linux 6 starting with the Red Hat Enterprise Linux 6.7 GA version kernel-2.6.32-573 . Prior Red Hat Enterprise Linux 6 kernel versions are not affected.", "title": "Statement" }, { "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": [ "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.src", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2020-10711" }, { "category": "external", "summary": "RHBZ#1825116", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1825116" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2020-10711", "url": "https://www.cve.org/CVERecord?id=CVE-2020-10711" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-10711", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10711" } ], "release_date": "2020-05-12T12:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2020-05-13T07:47:08+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.src", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2020:2125" }, { "category": "workaround", "details": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.\n\nThis issue can only be resolved by applying updates.", "product_ids": [ "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.src", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.x86_64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.src", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-0:1-2.el8.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debuginfo-0:1-2.el8.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:kpatch-patch-4_18_0-193-debugsource-0:1-2.el8.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic" } ] }