Out-of-bounds Read Affecting kernel-rt-trace-devel package, versions <0:3.10.0-1062.rt56.1022.el7


Severity

high

    Threat Intelligence

    EPSS
    0.06% (26th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2139648
  • published 26 Jul 2021
  • disclosed 21 Dec 2018

How to fix?

Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-1062.rt56.1022.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-trace-devel package and not the kernel-rt-trace-devel package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

A flaw was found in the Linux kernel that allows the userspace to call memcpy_fromiovecend() and similar functions with a zero offset and buffer length which causes the read beyond the buffer boundaries, in certain cases causing a memory access fault and a system halt by accessing invalid memory address. This issue only affects kernel version 3.10.x as shipped with Red Hat Enterprise Linux 7.

CVSS Scores

version 3.1
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Snyk

4.7 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
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NVD

5.5 medium
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Red Hat

4.7 medium