Vulnerability Monitor

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CVE-2020-26142

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.

Published

2021-05-11T20:15:08.760

Last Modified

2024-11-21T05:19:21.237

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:H/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: HIGH
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

4.9

Impact Score

2.9

Weaknesses

Type: Primary
CWE-74

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	openbsd	openbsd	6.6	Yes

References

http://www.openwall.com/lists/oss-security/2021/05/11/12 Mailing List, Third Party Advisory ([email protected])
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md Third Party Advisory ([email protected])
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu Third Party Advisory ([email protected])
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63 Third Party Advisory ([email protected])
https://www.fragattacks.com Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/05/11/12 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.fragattacks.com Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)