{ "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 kernel is now available for Red Hat Enterprise Linux 5 Extended Lifecycle Support.\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": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* The NFSv2 and NFSv3 server implementations in the Linux kernel through 4.10.13 lacked certain checks for the end of a buffer. A remote attacker could trigger a pointer-arithmetic error or possibly cause other unspecified impacts using crafted requests related to fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c. (CVE-2017-7895, Important)\n\nRed Hat would like to thank Ari Kauppi for reporting this issue.\n\nBug Fix(es):\n\n* When upgrading to kernel with the fix for stack guard flaw, a crash could occur in Java Virtual Machine (JVM) environments, which attempted to implement their own stack guard page. With this update, the underlying source code has been fixed to consider the PROT_NONE mapping as a part of the stack, and the crash in JVM no longer occurs under the described circumstances. (BZ#1467938)", "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-2017:2412", "url": "https://access.redhat.com/errata/RHSA-2017:2412" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "1446103", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1446103" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2017/rhsa-2017_2412.json" } ], "title": "Red Hat Security Advisory: kernel security and bug fix update", "tracking": { "current_release_date": "2026-02-26T20:42:16+00:00", "generator": { "date": "2026-02-26T20:42:16+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.7.1" } }, "id": "RHSA-2017:2412", "initial_release_date": "2017-08-02T09:59:24+00:00", "revision_history": [ { "date": "2017-08-02T09:59:24+00:00", "number": "1", "summary": "Initial version" }, { "date": "2017-08-02T09:59:24+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2026-02-26T20:42:16+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 Server (v. 5 ELS)", "product": { "name": "Red Hat Enterprise Linux Server (v. 5 ELS)", "product_id": 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"full_product_name": { "name": "kernel-xen-devel-0:2.6.18-422.el5.x86_64 as a component of Red Hat Enterprise Linux Server (v. 5 ELS)", "product_id": "5Server-ELS:kernel-xen-devel-0:2.6.18-422.el5.x86_64" }, "product_reference": "kernel-xen-devel-0:2.6.18-422.el5.x86_64", "relates_to_product_reference": "5Server-ELS" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "Ari Kauppi" ] } ], "cve": "CVE-2017-7895", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "discovery_date": "2017-04-18T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1446103" } ], "notes": [ { "category": "description", "text": "The NFSv2 and NFSv3 server implementations in the Linux kernel through 4.10.13 lacked certain checks for the end of a buffer. A remote attacker could trigger a pointer-arithmetic error or possibly cause other unspecified impacts using crafted requests related to fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: NFSv3 server does not properly handle payload bounds checking of WRITE requests", "title": "Vulnerability summary" }, { "category": "other", "text": "This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2 may address this issue.", "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": [ "5Server-ELS:kernel-0:2.6.18-422.el5.i686", "5Server-ELS:kernel-0:2.6.18-422.el5.s390x", "5Server-ELS:kernel-0:2.6.18-422.el5.src", "5Server-ELS:kernel-0:2.6.18-422.el5.x86_64", "5Server-ELS:kernel-PAE-0:2.6.18-422.el5.i686", "5Server-ELS:kernel-PAE-debuginfo-0:2.6.18-422.el5.i686", "5Server-ELS:kernel-PAE-devel-0:2.6.18-422.el5.i686", "5Server-ELS:kernel-debug-0:2.6.18-422.el5.i686", "5Server-ELS:kernel-debug-0:2.6.18-422.el5.s390x", "5Server-ELS:kernel-debug-0:2.6.18-422.el5.x86_64", "5Server-ELS:kernel-debug-debuginfo-0:2.6.18-422.el5.i686", 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