Inadequate Encryption Strength Affecting firmware-nonfree package, versions <20210818-1
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Test your applications- Snyk ID SNYK-DEBIAN13-FIRMWARENONFREE-5680214
- published 12 May 2021
- disclosed 11 May 2021
Introduced: 11 May 2021
CVE-2020-24587 Open this link in a new tabHow to fix?
Upgrade Debian:13 firmware-nonfree to version 20210818-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream firmware-nonfree package and not the firmware-nonfree package as distributed by Debian.
See How to fix? for Debian:13 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2020-24587
- 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://lists.debian.org/debian-lts-announce/2023/04/msg00002.html
- 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
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html