Vulnerability · Published May 11, 2021 · Assigned by mitre
CVE-2020-26143
Medium 6.5
In plain English
A medium-severity security flaw in the kernel-tools-libs-devel package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.2% (higher than 91% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)4.2%top 9.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in the ALFA Windows 10 driver 1030.36.604 for AWUS036ACH. The WEP, WPA, WPA2, and WPA3 implementations accept fragmented plaintext frames in a protected Wi-Fi network. An adversary can abuse this to inject arbitrary data frames independent of the network configuration.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-348.el8 | ALSA-2021:4356 |
| Ubuntu:22.04:LTS | linux | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:25.10 | linux | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.04:LTS | linux | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.10 | linux | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-aws | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-aws | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:25.10 | linux-aws | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.04:LTS | linux-aws | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.10 | linux-aws | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-aws-6.14 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-aws-6.17 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-aws-7.0 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-azure | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-azure | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:25.10 | linux-azure | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.04:LTS | linux-azure | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.10 | linux-azure | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-azure-6.11 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-azure-6.14 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-azure-6.17 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-azure-7.0 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-azure-fde | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-azure-fde | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:25.10 | linux-azure-fde | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.04:LTS | linux-azure-fde | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.10 | linux-azure-fde | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-azure-fde-6.14 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-azure-fde-6.17 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.8 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-azure-fde-7.0 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-azure-nvidia | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-azure-nvidia-6.14 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-gcp | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-gcp | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:25.10 | linux-gcp | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.04:LTS | linux-gcp | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.10 | linux-gcp | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-gcp-6.14 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-gcp-6.17 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-gcp-7.0 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-gke | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-gke | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.04:LTS | linux-gke | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-gkeop | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-gkeop | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-hwe-6.14 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-hwe-6.17 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-hwe-7.0 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-ibm | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-ibm | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.04:LTS | linux-ibm | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-intel | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-intel-iotg | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-kvm | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-lowlatency | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-lowlatency | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-nvidia | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-nvidia | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.04:LTS | linux-nvidia | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-nvidia-6.11 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-nvidia-6.17 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-nvidia-7.0 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.04:LTS | linux-nvidia-bos | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-nvidia-tegra | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-oem-6.11 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-oem-6.14 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-oem-6.17 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-oem-6.8 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.04:LTS | linux-oem-7.0 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-oracle | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-oracle | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:25.10 | linux-oracle | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.04:LTS | linux-oracle | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.10 | linux-oracle | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-oracle-6.14 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-oracle-6.17 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-oracle-6.8 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-oracle-7.0 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-raspi | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-raspi | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:25.10 | linux-raspi | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.04:LTS | linux-raspi | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.10 | linux-raspi | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:25.10 | linux-realtime | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.10 | linux-realtime | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:25.10 | linux-riscv | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:26.10 | linux-riscv | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-riscv-6.14 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-riscv-6.17 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-riscv-6.8 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-riscv-7.0 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-vmware | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:24.04:LTS | linux-xilinx | no fix listed | UBUNTU-CVE-2020-26143 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | no fix listed | UBUNTU-CVE-2020-26143 |
Affected products (as reported)
References
- 20210511 Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021 vendor-advisory, x_refsource_CISCO
- https://www.fragattacks.com x_refsource_MISC
- https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md x_refsource_MISC
- [oss-security] 20210511 various 802.11 security issues - fragattacks.com mailing-list, x_refsource_MLIST
- https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf x_refsource_CONFIRM
- https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63 x_refsource_MISC
- https://cert-portal.siemens.com/productcert/html/ssa-913875.html
- https://cert-portal.siemens.com/productcert/html/ssa-019200.html