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CVE-2020-24587

Published: May 11, 2021

Modified: Aug 4, 2024

PUBLISHED

Description

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html

20210511 Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021

vendor-advisory

https://www.fragattacks.com

https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md

[oss-security] 20210511 various 802.11 security issues - fragattacks.com

mailing-list

[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update

mailing-list

[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update

mailing-list

https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63

[debian-lts-announce] 20230401 [SECURITY] [DLA 3380-1] firmware-nonfree LTS new upstream version (security updates and newer firmware for Linux 5.10)

mailing-list

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