rhsa-2022_1373
Vulnerability from csaf_redhat
Published
2022-04-13 20:07
Modified
2024-11-06 00:40
Summary
Red Hat Security Advisory: kpatch-patch security update

Notes

Topic
An update is now available for Red Hat Enterprise Linux 7.7 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_gc() which could result in a local privilege escalation (CVE-2021-0920) * kernel: use-after-free in RDMA listen() (CVE-2021-4028) * kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083) * kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942) 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 is now available for Red Hat Enterprise Linux 7.7 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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        "text": "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.\n\nSecurity Fix(es):\n\n* kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)\n\n* kernel: use-after-free in RDMA listen() (CVE-2021-4028)\n\n* kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083)\n\n* kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)\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.",
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          "title": "Vulnerability description"
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          "text": "kernel: Use After Free in unix_gc() which could result in a local privilege escalation",
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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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          "title": "Vulnerability description"
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          "text": "kernel: use-after-free in RDMA listen()",
          "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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          "text": "A read-after-free memory flaw was found in the Linux kernel\u0027s garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system.",
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          "text": "kernel: fget: check that the fd still exists after getting a ref to it",
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          "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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        "name": "Use After Free"
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          "category": "description",
          "text": "A use-after-free flaw was found in the Linux kernel\u2019s vmw_execbuf_copy_fence_user function in drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c in vmwgfx. This flaw allows a local attacker with user privileges to cause a privilege escalation problem.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: failing usercopy allows for use-after-free exploitation",
          "title": "Vulnerability summary"
        },
        {
          "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-2022-22942"
        },
        {
          "category": "external",
          "summary": "RHBZ#2044809",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2044809"
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          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2022-22942",
          "url": "https://www.cve.org/CVERecord?id=CVE-2022-22942"
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          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-22942",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-22942"
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      "release_date": "2022-01-27T20:00:00+00:00",
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      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kernel: failing usercopy allows for use-after-free exploitation"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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