rhsa-2023_7243
Vulnerability from csaf_redhat
Published
2023-11-15 17:46
Modified
2024-11-15 17:35
Summary
Red Hat Security Advisory: kernel security update

Notes

Topic
An update for kernel is now available for Red Hat Enterprise Linux 7.7 Advanced Update 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): * kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() (CVE-2023-35001) 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.
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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        "name": "Out-of-bounds Read"
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      "discovery_date": "2023-07-06T00:00:00+00:00",
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          "text": "2220892"
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          "category": "description",
          "text": "An out-of-bounds (OOB) memory access flaw was found in the Netfilter module in the Linux kernel\u0027s nft_byteorder_eval in net/netfilter/nft_byteorder.c. A bound check failure allows a local attacker with CAP_NET_ADMIN access to cause a local privilege escalation issue due to incorrect data alignment.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval()",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Exploiting this flaw will require the CAP_NET_ADMIN access privilege in any user or network namespace.",
          "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",
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          "url": "https://access.redhat.com/security/cve/CVE-2023-35001"
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        {
          "category": "external",
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          "category": "external",
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          "url": "https://lore.kernel.org/netfilter-devel/20230705121515.747251-1-cascardo@canonical.com/T/"
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        {
          "category": "external",
          "summary": "https://www.openwall.com/lists/oss-security/2023/07/05/3",
          "url": "https://www.openwall.com/lists/oss-security/2023/07/05/3"
        }
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      "release_date": "2023-07-05T00:00:00+00:00",
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          "date": "2023-11-15T17:46:08+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\n\nThe system must be rebooted for this update to take effect.",
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            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval()"
    }
  ]
}


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