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Red Hat: CVE-2020-24586: CVE-2020-24586 kernel: Fragmentation cache not cleared on reconnection (Multiple Advisories)

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Red Hat: CVE-2020-24586: CVE-2020-24586 kernel: Fragmentation cache not cleared on reconnection (Multiple Advisories)

Severity
3
CVSS
(AV:A/AC:M/Au:N/C:P/I:N/A:N)
Published
05/11/2021
Created
11/11/2021
Added
11/10/2021
Modified
03/13/2024

Description

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances, when another device sends fragmented frames encrypted using WEP, CCMP, or GCMP, this can be abused to inject arbitrary network packets and/or exfiltrate user data.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2020-24586
  • RHSA-2021:4140
  • RHSA-2021:4356

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