# CVE-2018-11070: Weak cryptography in RSA BSAFE Crypto-J

> A remote attacker can recover RSA keys via a timing channel attack in RSA BSAFE libraries, compromising encrypted data confidentiality.

- **Severity:** Medium 5.9 (`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Sep 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-92wr-j974-xw8j

## What is CVE-2018-11070?

CVE-2018-11070 is a medium-severity vulnerability in Dell EMC RSA BSAFE Crypto-J, published on 11 Sep 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

RSA BSAFE Crypto-J versions prior to 6.2.4 and RSA BSAFE SSL-J versions prior to 6.2.4 contain a Covert Timing Channel vulnerability during PKCS #1 unpadding operations, also known as a Bleichenbacher attack. A remote attacker may be able to recover a RSA key.

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

## Which versions are affected by CVE-2018-11070?

It affects 2 products.


Products: Dell Bsafe Crypto-J, Dell Rsa Bsafe Ssl-J.

## How do I fix CVE-2018-11070?

No fix has been published for CVE-2018-11070 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-11070 being exploited?

There is no known exploitation of CVE-2018-11070 in the wild and no public exploit code.

## Other vulnerabilities in Dell EMC RSA BSAFE Crypto-J

- [CVE-2022-34381](https://insights.sbomify.com/CVE-2022-34381/): Supply chain in Dell BSAFE Crypto-J (critical 9.1)
- [CVE-2016-8212](https://insights.sbomify.com/CVE-2016-8212/): Security feature bypass in RSA BSAFE Crypto-J RSA BSAFE Crypto-J versions prior to 6.2.2 (high 7.5)
- [CVE-2025-26333](https://insights.sbomify.com/CVE-2025-26333/): Information disclosure in BSAFE Crypto-J (medium 5.9)
- [CVE-2016-8217](https://insights.sbomify.com/CVE-2016-8217/): Information disclosure in RSA BSAFE Crypto-J RSA BSAFE Crypto-J versions prior to 6.2.2 (low 3.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-11070 and fix it if it is affected.

What it is: CVE-2018-11070 is a medium-severity vulnerability in Dell EMC RSA BSAFE Crypto-J, published on 11 Sep 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-11070 in the wild and no public exploit code.

Affected product: Dell EMC RSA BSAFE Crypto-J. 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-2018-11070/ (Markdown: https://insights.sbomify.com/CVE-2018-11070/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-11070
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-11070
- OSV: https://osv.dev/vulnerability/CVE-2018-11070

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-11070/
Summaries are generated and may contain mistakes; the official description above is the record.