rhsa-2017_2412
Vulnerability from csaf_redhat
Published
2017-08-02 09:59
Modified
2024-11-05 20:08
Summary
Red Hat Security Advisory: kernel security and bug fix update

Notes

Topic
An update for kernel is now available for Red Hat Enterprise Linux 5 Extended Lifecycle Support. Red 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.
Details
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * 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) Red Hat would like to thank Ari Kauppi for reporting this issue. Bug Fix(es): * 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)
Terms of Use
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.


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          "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"
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          "text": "kernel: NFSv3 server does not properly handle payload bounds checking of WRITE requests",
          "title": "Vulnerability summary"
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        {
          "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\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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          "category": "self",
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          "url": "https://access.redhat.com/security/cve/CVE-2017-7895"
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          "summary": "RHBZ#1446103",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1446103"
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          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2017-7895",
          "url": "https://www.cve.org/CVERecord?id=CVE-2017-7895"
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          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2017-7895",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7895"
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      "release_date": "2017-04-28T00:00:00+00:00",
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          "category": "vendor_fix",
          "date": "2017-08-02T09:59:24+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\n\nThe system must be rebooted for this update to take effect.",
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            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
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      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kernel: NFSv3 server does not properly handle payload bounds checking of WRITE requests"
    }
  ]
}


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