# CVE-2021-0131: Weak cryptography in Intel(R) Security Library

> An authenticated attacker can exploit a weak PRNG in the Intel Security Library to potentially disclose sensitive information via network access.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jun 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-34wx-v4h8-8xh4

## What is CVE-2021-0131?

CVE-2021-0131 is a medium-severity vulnerability in Intel(R) Security Library, published on 9 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Use of cryptographically weak pseudo-random number generator (PRNG) in an API for the Intel(R) Security Library before version 3.3 may allow an authenticated user to potentially enable information disclosure via network access.

Weakness: CWE-338 (Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG))

## Which versions are affected by CVE-2021-0131?

It affects 1 product.


Products: Intel Secl-Dc.

## How do I fix CVE-2021-0131?

No fix has been published for CVE-2021-0131 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-0131 being exploited?

There is no known exploitation of CVE-2021-0131 in the wild and no public exploit code.

## Other vulnerabilities in Intel(R) Security Library

- [CVE-2021-0133](https://insights.sbomify.com/CVE-2021-0133/): Auth bypass in Intel(R) Security Library (high 8.1)
- [CVE-2021-0132](https://insights.sbomify.com/CVE-2021-0132/): Denial of service in Intel(R) Security Library (medium 4.9)
- [CVE-2021-0134](https://insights.sbomify.com/CVE-2021-0134/): Denial of service in Intel(R) Security Library (medium 4.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-0131 and fix it if it is affected.

What it is: CVE-2021-0131 is a medium-severity vulnerability in Intel(R) Security Library, published on 9 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-0131 in the wild and no public exploit code.

Affected product: Intel(R) Security Library. 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-2021-0131/ (Markdown: https://insights.sbomify.com/CVE-2021-0131/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-0131
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-0131
- OSV: https://osv.dev/vulnerability/CVE-2021-0131

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-0131/
Summaries are generated and may contain mistakes; the official description above is the record.