Improper Restriction of Excessive Authentication Attempts Affecting kernel-rt-debug package, versions <0:4.18.0-348.rt7.130.el8
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTDEBUG-2127482
- published 26 Jul 2021
- disclosed 11 May 2021
Introduced: 11 May 2021
CVE-2020-26147 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-debug to version 0:4.18.0-348.rt7.130.el8 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug package and not the kernel-rt-debug 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 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf
- https://access.redhat.com/security/cve/CVE-2020-26147
- https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
- https://www.fragattacks.com
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
- http://www.openwall.com/lists/oss-security/2021/05/11/12
- https://access.redhat.com/errata/RHSA-2021:4140
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
- https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63