Buffer Overflow Affecting kernel-rt-trace-devel package, versions <0:3.10.0-1062.1.2.rt56.1025.el7


Severity

0.0
high
0
10

    Threat Intelligence

    EPSS
    0.07% (30th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2148365
  • published 26 Jul 2021
  • disclosed 17 Sep 2019

How to fix?

Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-1062.1.2.rt56.1025.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 buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.

References

CVSS Scores

version 3.1
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Snyk

7.2 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    Required
  • Scope (S)
    Changed
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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NVD

7.8 high
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SUSE

7.8 high
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Red Hat

7.2 high