Inclusion of Functionality from Untrusted Control Sphere Affecting kernel-cross-headers package, versions <0:4.18.0-348.el8
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Test your applications- Snyk ID SNYK-RHEL8-KERNELCROSSHEADERS-4119445
- published 26 Jul 2021
- disclosed 12 May 2021
Introduced: 12 May 2021
CVE-2020-26139 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-cross-headers to version 0:4.18.0-348.el8 or higher.
This issue was patched in RHSA-2021:4356.
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 RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
An issue was discovered in the kernel in NetBSD 7.1. An Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and makes it easier to exploit other vulnerabilities in connected clients.
References
- https://access.redhat.com/security/cve/CVE-2020-26139
- 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-2021:4356
- https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf
- 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