Vulnerability Details : CVE-2020-26147
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.
Products affected by CVE-2020-26147
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_w700_ieee_802.11n_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_w1700_ieee_802.11ac_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:arista:c-75_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:arista:o-90_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:arista:c-65_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:arista:w-68_firmware:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-26147
0.17%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 54 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-26147
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.2
|
LOW | AV:A/AC:H/Au:N/C:P/I:P/A:N |
3.2
|
4.9
|
NIST | |
|
5.4
|
MEDIUM | CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N |
1.2
|
4.2
|
NIST |
References for CVE-2020-26147
-
https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf
Third Party Advisory
-
https://www.fragattacks.com
FragAttacks: Security flaws in all Wi-Fi devicesProduct
-
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
[SECURITY] [DLA 2690-1] linux-4.19 security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
[SECURITY] [DLA 2689-1] linux security updateMailing List;Third Party Advisory
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021Third Party Advisory
-
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
fragattacks/SUMMARY.md at master · vanhoefm/fragattacks · GitHubThird Party Advisory
-
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
Security Advisory 0063 - AristaThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2021/05/11/12
oss-security - various 802.11 security issues - fragattacks.comMailing List;Patch;Third Party Advisory
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