# CVE-2020-24587: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all


- **Severity:** Low 2.6 (`CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Fix available:** Yes
- **Published:** 11 May 2021
- **Updated:** 4 Aug 2024
- **Also known as:** 2860131, 2868012, 2874366, 2875946, 2875950, A-175626671, ASB-A-175626671, DEBIAN-CVE-2020-24587, GHSA-gx7f-9hjx-j92p, UBUNTU-CVE-2020-24587

## What is CVE-2020-24587?

CVE-2020-24587 is a low-severity vulnerability in Debian Debian Linux, published on 11 May 2021. 

### Official description

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed.

Weakness: CWE-327 (Use of a Broken or Risky Cryptographic Algorithm)

## Which versions are affected by CVE-2020-24587?

It affects 168 products.


Products: Arista C-100 Firmware, Arista C-110 Firmware, Arista C-120 Firmware, Arista C-130 Firmware, Arista C-200 Firmware, Arista C-230 Firmware, Arista C-235 Firmware, Arista C-250 Firmware, Arista C-260 Firmware, Arista C-65 Firmware, Arista C-75 Firmware, Arista O-105 Firmware, Arista O-90 Firmware, Arista W-118 Firmware, Arista W-68 Firmware, Cisco 1100-4p Firmware, Cisco 1100-8p Firmware, Cisco 1100 Firmware, Cisco 1101-4p Firmware, Cisco 1109-2p Firmware and 148 more.

## How do I fix CVE-2020-24587?

Upgrade to a fixed version.

## Is CVE-2020-24587 being exploited?

There is no known exploitation of CVE-2020-24587 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2020-26144](https://insights.sbomify.com/CVE-2020-26144/): Other in n/a (medium 6.5)
- [CVE-2020-26139](https://insights.sbomify.com/CVE-2020-26139/): Missing authorization in n/a (medium 5.3)
- [CVE-2020-26146](https://insights.sbomify.com/CVE-2020-26146/): Information disclosure in n/a (medium 5.3)
- [CVE-2020-24588](https://insights.sbomify.com/CVE-2020-24588/): The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the (low 3.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-24587 and fix it if it is affected.

What it is: CVE-2020-24587 is a low-severity vulnerability in Debian Debian Linux, published on 11 May 2021. 
Exploitation: There is no known exploitation of CVE-2020-24587 in the wild and no public exploit code.

Affected product: Debian Debian Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2020-24587/ (Markdown: https://insights.sbomify.com/CVE-2020-24587/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-24587
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-24587
- OSV: https://osv.dev/vulnerability/CVE-2020-24587

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-24587/
Summaries are generated and may contain mistakes; the official description above is the record.