Unrated severityNVD Advisory· Published Apr 29, 2014· Updated May 6, 2026
CVE-2013-7372
CVE-2013-7372
Description
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.
Affected products
13cpe:2.3:o:google:android:*:*:*:*:*:*:*:*+ 11 more
- cpe:2.3:o:google:android:*:*:*:*:*:*:*:*range: <=4.3.1
- cpe:2.3:o:google:android:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:4.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:4.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:4.0.3:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:4.0.4:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:4.1:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:4.1.2:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:4.2:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:4.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:4.2.2:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:4.3:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- android-developers.blogspot.com.au/2013/08/some-securerandom-thoughts.htmlnvdPatch
- android.googlesource.com/platform/libcore/+/kitkat-release/luni/src/main/java/org/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl.javanvdPatch
- www.nds.rub.de/media/nds/veroeffentlichungen/2013/03/25/paper_2.pdfnvdExploit
- bitcoin.org/en/alert/2013-08-11-androidnvd
News mentions
0No linked articles in our index yet.