rhsa-2019_2730
Vulnerability from csaf_redhat
Published
2019-09-11 09:23
Modified
2024-09-13 19:53
Summary
Red Hat Security Advisory: kernel-rt security and bug fix update

Notes

Topic
An update for kernel-rt is now available for Red Hat Enterprise MRG 2. 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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: Memory corruption due to incorrect socket cloning (CVE-2018-9568) * kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members (CVE-2018-13405) * kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884) * kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence (CVE-2018-16871) * kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125) For 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. Bug Fix(es): * Backport TCP follow-up for small buffers [mrg-r] (BZ#1732110) * update the MRG 2.5.z 3.10 realtime-kernel sources (BZ#1734469)
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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        "text": "The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.\n\nSecurity Fix(es):\n\n* kernel: Memory corruption due to incorrect socket cloning (CVE-2018-9568)\n\n* kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members (CVE-2018-13405)\n\n* kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)\n\n* kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence (CVE-2018-16871)\n\n* kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)\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.\n\nBug Fix(es):\n\n* Backport TCP follow-up for small buffers [mrg-r] (BZ#1732110)\n\n* update the MRG 2.5.z 3.10 realtime-kernel sources (BZ#1734469)",
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            "vectorString": "CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H",
            "version": "3.0"
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kernel: nfs: use-after-free in svc_process_common()"
    },
    {
      "cve": "CVE-2019-1125",
      "cwe": {
        "id": "CWE-200",
        "name": "Exposure of Sensitive Information to an Unauthorized Actor"
      },
      "discovery_date": "2019-06-26T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1724389"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A Spectre gadget was found in the Linux kernel\u0027s implementation of system interrupts. An attacker with local access could use this information to reveal private data through a Spectre like side channel.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: hw: Spectre SWAPGS gadget vulnerability",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat Product Security is aware of this issue. Updates will be released as they become available. For additional information, please refer to the Red Hat Knowledgebase article:  https://access.redhat.com/articles/4329821",
          "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.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2019-1125"
        },
        {
          "category": "external",
          "summary": "RHBZ#1724389",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1724389"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2019-1125",
          "url": "https://www.cve.org/CVERecord?id=CVE-2019-1125"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-1125",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-1125"
        }
      ],
      "release_date": "2019-08-06T17:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "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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          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2019:2730"
        },
        {
          "category": "workaround",
          "details": "For mitigation related information, please refer to the Red Hat Knowledgebase article:  https://access.redhat.com/articles/4329821",
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            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.0"
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      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "kernel: hw: Spectre SWAPGS gadget vulnerability"
    }
  ]
}


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