# CVE-2019-3740: Information disclosure in RSA BSAFE Crypto-J

> A timing side-channel in DSA key generation allows remote attackers to recover private keys, impacting users of the RSA BSAFE Crypto-J library.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 18 Sep 2019
- **Updated:** 8 Oct 2026
- **Also known as:** GHSA-7mmw-x6rm-hmr8

## What is CVE-2019-3740?

CVE-2019-3740 is a medium-severity vulnerability in Oracle Communications Unified Inventory Management, published on 18 Sep 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

RSA BSAFE Crypto-J versions prior to 6.2.5 are vulnerable to an Information Exposure Through Timing Discrepancy vulnerabilities during DSA key generation. A malicious remote attacker could potentially exploit those vulnerabilities to recover DSA keys.

Weakness: CWE-203 (Observable Discrepancy), CWE-310

## Which versions are affected by CVE-2019-3740?

It affects 18 products.


Products: Dell Bsafe Cert-J, Dell Bsafe Crypto-J, Dell Bsafe Ssl-J, Oracle Application Performance Management, Oracle Communications Network Integrity, Oracle Communications Unified Inventory Management, Oracle Database, Oracle Global Lifecycle Management Opatch, Oracle Goldengate, Oracle Retail Assortment Planning, Oracle Retail Integration Bus, Oracle Retail Predictive Application Server, Oracle Retail Service Backbone, Oracle Retail Store Inventory Management, Oracle Retail Xstore Point of Service, Oracle Storagetek Acsls, Oracle Storagetek Tape Analytics Sw Tool, Oracle Weblogic Server.

## How do I fix CVE-2019-3740?

No fix has been published for CVE-2019-3740 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-3740 being exploited?

There is no known exploitation of CVE-2019-3740 in the wild and no public exploit code.

## Other vulnerabilities in Oracle Communications Unified Inventory Management

- [CVE-2019-3738](https://insights.sbomify.com/CVE-2019-3738/): Weak cryptography in RSA BSAFE Crypto-J (medium 6.5)
- [CVE-2019-3739](https://insights.sbomify.com/CVE-2019-3739/): Information disclosure in RSA BSAFE Crypto-J (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-3740 and fix it if it is affected.

What it is: CVE-2019-3740 is a medium-severity vulnerability in Oracle Communications Unified Inventory Management, published on 18 Sep 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-3740 in the wild and no public exploit code.

Affected product: Oracle Communications Unified Inventory Management. 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-2019-3740/ (Markdown: https://insights.sbomify.com/CVE-2019-3740/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-3740
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-3740
- OSV: https://osv.dev/vulnerability/CVE-2019-3740

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-3740/
Summaries are generated and may contain mistakes; the official description above is the record.