Vulnerability · Published May 11, 2021 · Assigned by mitre
CVE-2020-26142
Medium 5.3
In plain English
A medium-severity security flaw in the linux package (Ubuntu). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 82% of all known vulnerabilities).
Severity (CVSS NVD)5.3Medium
Exploit odds (30 days)2.1%top 18.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | linux | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:25.10 | linux | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.04:LTS | linux | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.10 | linux | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-aws | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-aws | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:25.10 | linux-aws | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.04:LTS | linux-aws | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.10 | linux-aws | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-aws-6.14 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-aws-6.17 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-aws-7.0 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-azure | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-azure | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:25.10 | linux-azure | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.04:LTS | linux-azure | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.10 | linux-azure | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-azure-6.11 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-azure-6.14 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-azure-6.17 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-azure-7.0 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-azure-fde | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-azure-fde | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:25.10 | linux-azure-fde | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.04:LTS | linux-azure-fde | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.10 | linux-azure-fde | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-azure-fde-6.14 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-azure-fde-6.17 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.8 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-azure-fde-7.0 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-azure-nvidia | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-azure-nvidia-6.14 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-gcp | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-gcp | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:25.10 | linux-gcp | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.04:LTS | linux-gcp | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.10 | linux-gcp | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-gcp-6.14 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-gcp-6.17 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-gcp-7.0 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-gke | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-gke | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.04:LTS | linux-gke | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-gkeop | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-gkeop | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-hwe-6.14 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-hwe-6.17 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-hwe-7.0 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-ibm | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-ibm | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.04:LTS | linux-ibm | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-intel | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-intel-iotg | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-kvm | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-lowlatency | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-lowlatency | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-nvidia | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-nvidia | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.04:LTS | linux-nvidia | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-nvidia-6.11 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-nvidia-6.17 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-nvidia-7.0 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.04:LTS | linux-nvidia-bos | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-nvidia-tegra | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-oem-6.11 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-oem-6.14 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-oem-6.17 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-oem-6.8 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.04:LTS | linux-oem-7.0 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-oracle | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-oracle | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:25.10 | linux-oracle | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.04:LTS | linux-oracle | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.10 | linux-oracle | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-oracle-6.14 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-oracle-6.17 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-oracle-6.8 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-oracle-7.0 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-raspi | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-raspi | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:25.10 | linux-raspi | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.04:LTS | linux-raspi | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.10 | linux-raspi | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:25.10 | linux-realtime | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.10 | linux-realtime | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:25.10 | linux-riscv | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:26.10 | linux-riscv | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-riscv-6.14 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-riscv-6.17 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-riscv-6.8 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-riscv-7.0 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-vmware | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:24.04:LTS | linux-xilinx | no fix listed | UBUNTU-CVE-2020-26142 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | no fix listed | UBUNTU-CVE-2020-26142 |
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://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63 x_refsource_MISC