CVE-2020-26147

Description

An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.

5.4

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.13%

Vendor Advisory cisco.com

Affected: n/a n/a

References

Link	Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu	third party advisory vendor advisory
https://www.fragattacks.com	product
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md	third party advisory
http://www.openwall.com/lists/oss-security/2021/05/11/12	mailing list third party advisory patch
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html	third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html	third party advisory mailing list
https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf	third party advisory
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63	third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-26147?: CVE-2020-26147 has been scored as a medium severity vulnerability.
How to fix CVE-2020-26147?: To fix CVE-2020-26147, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-26147 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2020-26147 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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