Improper Input Validation Affecting bpftool package, versions <0:4.18.0-305.el8


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.12% (47th percentile)

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  • Snyk IDSNYK-CENTOS8-BPFTOOL-2093580
  • published26 Jul 2021
  • disclosed25 Sept 2020

Introduced: 25 Sep 2020

CVE-2020-25643  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Centos:8 bpftool to version 0:4.18.0-305.el8 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.

A flaw was found in the HDLC_PPP module of the Linux kernel in versions before 5.9-rc7. Memory corruption and a read overflow is caused by improper input validation in the ppp_cp_parse_cr function which can cause the system to crash or cause a denial of service. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS Scores

version 3.1