The engineNextBytes function in…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The engineNextBytes function in classlib/modules/security/src/main/java/common/org/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl.java in the SecureRandom implementation in Apache Harmony through 6.0M3, as used in the Java Cryptography Architecture (JCA) in Android before 4.4 and other products, when no seed is provided by the user, uses an incorrect offset value, which makes it easier for attackers to defeat cryptographic protection mechanisms by leveraging the resulting PRNG predictability, as exploited in the wild against Bitcoin wallet applications in August 2013.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 13
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apache:harmony:*:m3:*:*:*:*:*:* | up to 6.0 | Vulnerable | Apache |
| cpe:2.3:o:google:android:*:*:*:*:*:*:*:* | up to 4.3.1 | Vulnerable | |
| cpe:2.3:o:google:android:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | |
| cpe:2.3:o:google:android:4.0.1:*:*:*:*:*:*:* | 4.0.1 | Vulnerable | |
| cpe:2.3:o:google:android:4.0.2:*:*:*:*:*:*:* | 4.0.2 | Vulnerable | |
| cpe:2.3:o:google:android:4.0.3:*:*:*:*:*:*:* | 4.0.3 | Vulnerable | |
| cpe:2.3:o:google:android:4.0.4:*:*:*:*:*:*:* | 4.0.4 | Vulnerable | |
| cpe:2.3:o:google:android:4.1:*:*:*:*:*:*:* | 4.1 | Vulnerable | |
| cpe:2.3:o:google:android:4.1.2:*:*:*:*:*:*:* | 4.1.2 | Vulnerable | |
| cpe:2.3:o:google:android:4.2:*:*:*:*:*:*:* | 4.2 | Vulnerable |
- cpe:2.3:a:apache:harmony:*:m3:*:*:*:*:*:* Versions up to 6.0 Vulnerable ·Apache
- cpe:2.3:o:google:android:*:*:*:*:*:*:*:* Versions up to 4.3.1 Vulnerable ·Google
- cpe:2.3:o:google:android:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Google
- cpe:2.3:o:google:android:4.0.1:*:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·Google
- cpe:2.3:o:google:android:4.0.2:*:*:*:*:*:*:* Versions 4.0.2 Vulnerable ·Google
- cpe:2.3:o:google:android:4.0.3:*:*:*:*:*:*:* Versions 4.0.3 Vulnerable ·Google
- cpe:2.3:o:google:android:4.0.4:*:*:*:*:*:*:* Versions 4.0.4 Vulnerable ·Google
- cpe:2.3:o:google:android:4.1:*:*:*:*:*:*:* Versions 4.1 Vulnerable ·Google
- cpe:2.3:o:google:android:4.1.2:*:*:*:*:*:*:* Versions 4.1.2 Vulnerable ·Google
- cpe:2.3:o:google:android:4.2:*:*:*:*:*:*:* Versions 4.2 Vulnerable ·Google
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2013-7372
- 2026-10-03 Alias added: GHSA-fgwm-j3p8-w23c
References
Patch 2
Sources
- CVE-2013-7372 · CVE Program
- CVE-2013-7372 · NVD
- FIRST EPSS
- GHSA-fgwm-j3p8-w23c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences