Use After Free Affecting kernel-rt-trace-devel package, versions <0:3.10.0-862.2.3.rt56.806.el7


Severity

0.0
high
0
10

    Threat Intelligence

    Exploit Maturity
    Mature
    EPSS
    0.04% (1st percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2102114
  • published 26 Jul 2021
  • disclosed 24 Nov 2017

How to fix?

Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-862.2.3.rt56.806.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.

The XFRM dump policy implementation in net/xfrm/xfrm_user.c in the Linux kernel before 4.13.11 allows local users to gain privileges or cause a denial of service (use-after-free) via a crafted SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY Netlink messages.

CVSS Scores

version 3.1
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Snyk

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

7.8 high
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Red Hat

8.1 high