CVE-2016-1000339

bouncycastle: Information leak in AESFastEngine class

Published Jun 4, 2018 CVSS 3.0 · 5.3 Medium EPSS 2.7% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-1418-1 bouncycastle security update
EUVD EUVD EUVD-2018-0572 Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15
Github GHSA Github GHSA GHSA-c8xf-m4ff-jcxj Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15
Ubuntu USN Ubuntu USN USN-3727-1 Bouncy Castle vulnerabilities
History
Type Values Removed Values Added
First Time appeared Bouncycastle bc-java
CPEs cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-java-crytography-api:*:*:*:*:*:*:*:* cpe:2.3:a:bouncycastle:bc-java:*:*:*:*:*:*:*:*
Vendors & Products Bouncycastle legion-of-the-bouncy-castle-java-crytography-api
Bouncycastle bc-java
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 6, 2024, 3:55 AM
Reserved
Jun 4, 2018, 12:00 AM
Status
Modified
Published
Jun 4, 2018, 1:29 PM
Modified
Jun 17, 2026, 12:38 AM
Severity
Moderate
Public date
Jun 7, 2018, 12:00 AM