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Red Hat OpenShift: CVE-2021-29923: incorrect parsing of extraneous zero characters at the beginning of an IP address octet

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Red Hat OpenShift: CVE-2021-29923: incorrect parsing of extraneous zero characters at the beginning of an IP address octet

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
08/07/2021
Created
02/25/2022
Added
02/24/2022
Modified
10/16/2023

Description

Go before 1.17 does not properly consider extraneous zero characters at the beginning of an IP address octet, which (in some situations) allows attackers to bypass access control that is based on IP addresses, because of unexpected octal interpretation. This affects net.ParseIP and net.ParseCIDR.

Solution(s)

  • linuxrpm-upgrade-butane
  • linuxrpm-upgrade-cri-o
  • linuxrpm-upgrade-cri-tools
  • linuxrpm-upgrade-golang-github-prometheus-promu
  • linuxrpm-upgrade-ignition
  • linuxrpm-upgrade-openshift4-wincw-windows-machine-config-rhel8-operator

References

  • https://attackerkb.com/topics/cve-2021-29923
  • CVE - 2021-29923
  • RHSA-2021:3431
  • RHSA-2021:3585
  • RHSA-2021:4722
  • RHSA-2021:4725
  • RHSA-2021:4902
  • RHSA-2021:4910
  • RHSA-2022:0237
  • RHSA-2022:0260
  • RHSA-2022:0431
  • RHSA-2022:0432
  • RHSA-2022:0434
  • RHSA-2022:0557
  • RHSA-2022:0561
  • RHSA-2022:0577
  • RHSA-2022:0947
  • RHSA-2022:0988
  • RHSA-2022:0989
  • RHSA-2022:0997
  • RHSA-2022:0998
  • RHSA-2022:1276
  • RHSA-2022:1372
View more

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