rhsa-2016_1581
Vulnerability from csaf_redhat
Published
2016-08-09 08:41
Modified
2024-11-14 19:56
Summary
Red Hat Security Advisory: kernel security update

Notes

Topic
An update for kernel is now available for Red Hat Enterprise Linux 6.4 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): * A flaw was found in the way certain interfaces of the Linux kernel's Infiniband subsystem used write() as bi-directional ioctl() replacement, which could lead to insufficient memory security checks when being invoked using the splice() system call. A local unprivileged user on a system with either Infiniband hardware present or RDMA Userspace Connection Manager Access module explicitly loaded, could use this flaw to escalate their privileges on the system. (CVE-2016-4565) Red Hat would like to thank Jann Horn 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.


To clipboard 

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          "title": "Vulnerability description"
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          "category": "summary",
          "text": "kernel: infiniband: Unprivileged process can overwrite kernel memory using rdma_ucm.ko",
          "title": "Vulnerability summary"
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          "category": "other",
          "text": "This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5.\n\nThis issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 6, 7 and Red Hat Enterprise MRG-2. Future Linux kernel updates for the respective releases might 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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      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kernel: infiniband: Unprivileged process can overwrite kernel memory using rdma_ucm.ko"
    }
  ]
}


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