Resource Exhaustion Affecting kernel-cross-headers package, versions <0:4.18.0-147.el8


Severity

Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.07% (34th percentile)

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  • Snyk ID SNYK-CENTOS8-KERNELCROSSHEADERS-2001009
  • published 26 Jul 2021
  • disclosed 27 Aug 2019

How to fix?

Upgrade Centos:8 kernel-cross-headers to version 0:4.18.0-147.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-cross-headers package and not the kernel-cross-headers package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

An issue was discovered in the Linux kernel before 5.0.19. There is an out-of-bounds array access in __xfrm_policy_unlink, which will cause denial of service, because verify_newpolicy_info in net/xfrm/xfrm_user.c mishandles directory validation.

CVSS Scores

version 3.1
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NVD

4.4 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
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Red Hat

6.7 medium
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SUSE

7.8 high