rhsa-2024_0376
Vulnerability from csaf_redhat
Published
2024-01-23 17:25
Modified
2024-11-15 17:39
Summary
Red Hat Security Advisory: kpatch-patch security update

Notes

Topic
An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions. 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
This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Security Fix(es): * kernel: use after free in unix_stream_sendpage (CVE-2023-4622) * kernel: netfilter: potential slab-out-of-bound access due to integer underflow (CVE-2023-42753) * kernel: bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (CVE-2023-2163) 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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        "text": "An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions.\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.",
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        "name": "Incorrect Calculation"
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          "category": "description",
          "text": "An incorrect verifier pruning flaw was found in BPF in the Linux Kernel that may lead to unsafe code paths incorrectly marked as safe, resulting in arbitrary read/writes in kernel memory, lateral privilege escalation, and container escape.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The Red Hat Enterprise Linux 9.3 not affected, because the required patch applied before this CVE creation. For the Red Hat Enterprise Linux 9 before version 9.3 required fixes applied too.",
          "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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          "text": "A use-after-free flaw was found in the Linux kernel\u0027s af_unix component that allows local privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer\u0027s recv queue without locking the queue. This issue leads to a race condition where the unix_stream_sendpage() function could access a skb that is being released by garbage collection, resulting in a use-after-free issue.",
          "title": "Vulnerability description"
        },
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          "text": "kernel: use after free in unix_stream_sendpage",
          "title": "Vulnerability summary"
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        {
          "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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          "url": "https://access.redhat.com/errata/RHSA-2024:0376"
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            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kernel: netfilter: potential slab-out-of-bound access due to integer underflow"
    }
  ]
}


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