Mirrored Regions with Different Values Affecting bpftool package, versions <0:4.18.0-193.1.2.el8_2


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-CENTOS8-BPFTOOL-2041005
  • published26 Jul 2021
  • disclosed28 Apr 2020

Introduced: 28 Apr 2020

CVE-2020-11884  (opens in a new tab)
CWE-1251  (opens in a new tab)

How to fix?

Upgrade Centos:8 bpftool to version 0:4.18.0-193.1.2.el8_2 or higher.

NVD Description

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

In the Linux kernel 4.19 through 5.6.7 on the s390 platform, code execution may occur because of a race condition, as demonstrated by code in enable_sacf_uaccess in arch/s390/lib/uaccess.c that fails to protect against a concurrent page table upgrade, aka CID-3f777e19d171. A crash could also occur.

CVSS Scores

version 3.1