CVE-2016-1000339 Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2016-1000339?
CVE-2016-1000339 is a medium-severity vulnerability in Bouncycastle Bc-Java, published on 4 Jun 2018.
Official description
In the Bouncy Castle JCE Provider version 1.55 and earlier the primary engine class used for AES was AESFastEngine. Due to the highly table driven approach used in the algorithm it turns out that if the data channel on the CPU can be monitored the lookup table accesses are sufficient to leak information on the AES key being used. There was also a leak in AESEngine although it was substantially less. AESEngine has been modified to remove any signs of leakage (testing carried out on Intel X86-64) and is now the primary AES class for the BC JCE provider from 1.56. Use of AESFastEngine is now only recommended where otherwise deemed appropriate.
Weakness: CWE-310
Which versions are affected by CVE-2016-1000339?
6 open source packages ship an affected version, including org.bouncycastle:bcprov-jdk14, org.bouncycastle:bcprov-jdk15 and org.bouncycastle:bcprov-jdk15on. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
org.bouncycastle:bcprov-jdk14 Maven | All versions | 1.56 |
org.bouncycastle:bcprov-jdk14 Maven | All versions | 1.56 |
org.bouncycastle:bcprov-jdk15 Maven | All versions | 1.56 |
org.bouncycastle:bcprov-jdk15 Maven | All versions | 1.56 |
org.bouncycastle:bcprov-jdk15on Maven | All versions | 1.56 |
org.bouncycastle:bcprov-jdk15on Maven | All versions | 1.56 |
Products include Bouncycastle Bc-Java, Debian Debian Linux.
How do I fix CVE-2016-1000339?
Upgrade org.bouncycastle:bcprov-jdk14 to 1.56 or later.
Is CVE-2016-1000339 being exploited?
There is no known exploitation of CVE-2016-1000339 in the wild and no public exploit code.
Other vulnerabilities in Bouncycastle Bc-Java
- CVE-2007-6721 Legion of the Bouncy Castle Java Cryptography API Bleichenbacher Oracle Vulnerability
- CVE-2018-1000613 Deserialization of Untrusted Data in Bouncy castle
- CVE-2026-58062 Stapled OCSP response accepted without binding to the checked certificate
- CVE-2026-59638 JSSE hostname verifier CN-fallback enabled by default despite documented opt-in
- CVE-2026-59650 MTI/A0 DH agreement exponentiates unvalidated peer value
Sources
Also known as DEBIAN-CVE-2016-1000339, GHSA-c8xf-m4ff-jcxj, UBUNTU-CVE-2016-1000339.