CVE-2020-26142
First published: Tue May 11 2021(Updated: )
An issue was discovered in the kernel in OpenBSD 6.6. The WEP, WPA, WPA2, and WPA3 implementations treat fragmented frames as full frames. An adversary can abuse this to inject arbitrary network packets, independent of the network configuration.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenBSD | =6.6 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2021/05/11/12
- https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
- 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.fragattacks.com
Frequently Asked Questions
What is CVE-2020-26142?
CVE-2020-26142 is an issue discovered in the kernel in OpenBSD 6.6 that affects the WEP, WPA, WPA2, and WPA3 implementations.
What is the severity of CVE-2020-26142?
The severity of CVE-2020-26142 is medium with a CVSS score of 5.3.
How does CVE-2020-26142 affect OpenBSD 6.6?
CVE-2020-26142 in OpenBSD 6.6 allows an adversary to inject arbitrary network packets by treating fragmented frames as full frames.
How can an adversary exploit CVE-2020-26142?
An adversary can abuse CVE-2020-26142 to inject arbitrary network packets, independent of the network configuration.
Is there any fix or patch available for CVE-2020-26142?
Yes, patches and fixes for CVE-2020-26142 are available. Please refer to the OpenBSD security advisories for detailed instructions.
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- version/openbsd/6.6