Use After Free Affecting kernel-rt-kvm package, versions <0:3.10.0-1160.59.1.rt56.1200.el7


Severity

0.0
high
0
10

    Threat Intelligence

    Exploit Maturity
    Mature
    EPSS
    0.06% (28th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTKVM-2317325
  • published 14 Dec 2021
  • disclosed 28 Jul 2021

How to fix?

Upgrade Centos:7 kernel-rt-kvm to version 0:3.10.0-1160.59.1.rt56.1200.el7 or higher.

NVD Description

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

In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel

CVSS Scores

version 3.1
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Snyk

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

6.4 medium
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SUSE

7.8 high
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Red Hat

7.4 high