CVE-2020-26147

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Summary

CVECVE-2020-26147
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-05-11 20:15:08 UTC
Updated2026-04-14 10:16:18 UTC
DescriptionAn 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.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from [email protected]

CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N

Problem Types: NVD-CWE-Other | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.4MEDIUMCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N
2.0[email protected]Primary3.2AV:A/AC:H/Au:N/C:P/I:P/A:N

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
None

CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N

CVSS v2.0 Breakdown

Access Vector
Adjacent
Access Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified
ADP Siemens SCALANCE W1748-1 M12 affected V3.0.0 custom Not specified
ADP Siemens SCALANCE W1748-1 M12 affected V3.0.0 custom Not specified
ADP Siemens SCALANCE W1788-1 M12 affected V3.0.0 custom Not specified
ADP Siemens SCALANCE W1788-2 EEC M12 affected V3.0.0 custom Not specified
ADP Siemens SCALANCE W1788-2 M12 affected V3.0.0 custom Not specified
ADP Siemens SCALANCE W1788-2IA M12 affected V3.0.0 custom Not specified
ADP Siemens SCALANCE W721-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W721-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W721-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W721-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W722-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W722-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W722-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W722-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W722-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W722-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W734-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W734-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W734-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W734-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W734-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W734-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W734-1 RJ45 USA affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W734-1 RJ45 USA affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W738-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W738-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W738-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W738-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W748-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W748-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W748-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W748-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W748-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W748-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W748-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W748-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W761-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W761-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W761-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W761-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W774-1 M12 EEC affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W774-1 M12 EEC affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W774-1 M12 EEC affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W774-1 M12 EEC affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W774-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W774-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W774-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W774-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W774-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W774-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W774-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W774-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W774-1 RJ45 USA affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W774-1 RJ45 USA affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W778-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W778-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W778-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W778-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W778-1 M12 EEC affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W778-1 M12 EEC affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W778-1 M12 EEC USA affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W778-1 M12 EEC USA affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-2 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-2 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-2 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-2 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-2 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-2 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-2 SFP affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-2 SFP affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-2 SFP affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-2 SFP affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-2IA RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-2IA RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-2IA RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W786-2IA RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-1 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-1 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 M12 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 M12 EEC affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 M12 EEC affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 M12 EEC affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 M12 EEC affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 M12 EEC affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 M12 EEC affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 RJ45 affected V6.6.0 custom Not specified
ADP Siemens SCALANCE W788-2 RJ45 affected V6.6.0 custom Not specified

References

ReferenceSourceLinkTags
cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf af854a3a-2127-422b-91ae-364da2661108 cert-portal.siemens.com Third Party Advisory
fragattacks/SUMMARY.md at master · vanhoefm/fragattacks · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-019200.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
FragAttacks: Security flaws in all Wi-Fi devices af854a3a-2127-422b-91ae-364da2661108 www.fragattacks.com Product
cert-portal.siemens.com/productcert/html/ssa-913875.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
[SECURITY] [DLA 2689-1] linux security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
[SECURITY] [DLA 2690-1] linux-4.19 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
Security Advisory 0063 - Arista af854a3a-2127-422b-91ae-364da2661108 www.arista.com Third Party Advisory
Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021 af854a3a-2127-422b-91ae-364da2661108 tools.cisco.com Third Party Advisory
oss-security - various 802.11 security issues - fragattacks.com af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159338 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9404)
  • 159339 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9406)
  • 159399 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9452)
  • 159400 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9453)
  • 159403 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9459)
  • 159492 Oracle Enterprise Linux Security Update for kernel (ELSA-2021-4356)
  • 178679 Debian Security Update for linux-4.19 (DLA 2690-1)
  • 178680 Debian Security Update for linux (DLA 2689-1)
  • 198416 Ubuntu Security Notification for Linux kernel vulnerabilities (USN-4997-1)
  • 198417 Ubuntu Security Notification for Linux kernel vulnerabilities (USN-4999-1)
  • 198418 Ubuntu Security Notification for Linux kernel vulnerabilities (USN-5000-1)
  • 198419 Ubuntu Security Notification for Linux kernel (OEM) vulnerabilities (USN-5001-1)
  • 198425 Ubuntu Security Notification for Linux kernel (KVM) vulnerabilities (USN-5000-2)
  • 198426 Ubuntu Security Notification for Linux kernel (KVM) vulnerabilities (USN-4997-2)
  • 198459 Ubuntu Security Notification for Linux, Linux-aws, Linux-aws-hwe, Linux-azure, Linux-azure-4.15, Linux-gcp, (USN-5018-1)
  • 239816 Red Hat Update for kernel security (RHSA-2021:4356)
  • 239879 Red Hat Update for kernel-rt (RHSA-2021:4140)
  • 352831 Amazon Linux Security Advisory for kernel: ALAC2012-2021-030
  • 352832 Amazon Linux Security Advisory for kmod-sfc: ALAC2012-2021-031
  • 352833 Amazon Linux Security Advisory for kmod-mlx5: ALAC2012-2021-032
  • 353147 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-004
  • 353158 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2022-002
  • 390248 Oracle Managed Virtualization (VM) Server for x86 Security Update for kernel (OVMSA-2021-0035)
  • 591035 Siemens SCALANCE FragAttacks Multiple Vulnerabilities (ICSA-22-104-04) (SSA-913875)
  • 591150 Hitachi ABB Power Grids TropOS Multiple Vulnerabilities (ICSA-21-236-01,9AKK107992A4463)
  • 610373 Google Android Devices October 2021 Security Patch Missing
  • 610383 Google Android November 2021 Security Patch Missing for LGE
  • 671051 EulerOS Security Update for kernel (EulerOS-SA-2021-2663)
  • 671441 EulerOS Security Update for kernel (EulerOS-SA-2022-1366)
  • 671703 EulerOS Security Update for kernel (EulerOS-SA-2022-1735)
  • 690816 Free Berkeley Software Distribution (FreeBSD) Security Update for freebsd-kernel (8d20bd48-a4f3-11ec-90de-1c697aa5a594)
  • 750117 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1891-1)
  • 750118 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1890-1)
  • 750121 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1888-1)
  • 750125 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1887-1)
  • 750126 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1889-1)
  • 750139 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1913-1)
  • 750140 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1912-1)
  • 750171 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:0843-1)
  • 750650 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1975-1)
  • 750652 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1977-1)
  • 750741 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:0947-1)
  • 750762 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1977-1)
  • 750766 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1975-1)
  • 750864 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:2421-1)
  • 750880 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:2451-1)
  • 940265 AlmaLinux Security Update for kernel (ALSA-2021:4356)
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