rhsa-2018_1353
Vulnerability from csaf_redhat
Published
2018-05-08 22:49
Modified
2024-11-15 03:04
Summary
Red Hat Security Advisory: kernel security 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 Moderate. 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): * Kernel: error in exception handling leads to DoS (CVE-2018-8897) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Red Hat would like to thank Nick Peterson (Everdox Tech LLC) and Andy Lutomirski for reporting this issue.
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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            "Andy Lutomirski"
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          "organization": "Everdox Tech LLC"
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          "text": "1567074"
        }
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          "category": "description",
          "text": "A flaw was found in the way the Linux kernel handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged system user could use this flaw to crash the system kernel resulting in the denial of service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Kernel: error in exception handling leads to DoS",
          "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\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2018-8897"
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        {
          "category": "external",
          "summary": "RHBZ#1567074",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1567074"
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        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2018-8897",
          "url": "https://www.cve.org/CVERecord?id=CVE-2018-8897"
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          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-8897",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-8897"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/security/vulnerabilities/pop_ss",
          "url": "https://access.redhat.com/security/vulnerabilities/pop_ss"
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      "release_date": "2018-05-08T00:00:00+00:00",
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          "category": "vendor_fix",
          "date": "2018-05-08T22:49:06+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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          "cvss_v3": {
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            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.0"
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "Kernel: error in exception handling leads to DoS"
    }
  ]
}


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