CVE-2016-1000339
bouncycastle: Information leak in AESFastEngine class
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
En la versión 1.55 y anteriores de Bouncy Castle JCE Provider, la clase de motor primaria empleada para AES era AESFastEngine. Debido al enfoque altamente enfocado a tablas empleado en el algoritmo, resulta que, si el canal de datos en la CPU puede ser monitorizado, los accesos a la tabla de búsquedas son suficientes para filtrar información sobre la clave de AES en uso. También había una fuga en AESEngine, aunque significativamente menor. AESEngine se ha modificado para eliminar cualquier señal de fuga (las pruebas se han realizado en Intel X86-64) y ahora es la principal clase de AES para el proveedor BC JCE desde la versión 1.56. Ahora, el uso de AESFastEngine solo se recomienda donde sea apropiado.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2018-06-04 CVE Reserved
- 2018-06-04 CVE Published
- 2023-12-29 EPSS Updated
- 2024-08-06 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- CWE-310: Cryptographic Issues
CAPEC
References (10)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20181127-0004 | X_refsource_confirm |
|
| https://www.oracle.com/security-alerts/cpuoct2020.html | X_refsource_misc |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2018:2669 | 2020-10-20 | |
| https://access.redhat.com/errata/RHSA-2018:2927 | 2020-10-20 | |
| https://usn.ubuntu.com/3727-1 | 2020-10-20 | |
| https://access.redhat.com/security/cve/CVE-2016-1000339 | 2018-10-16 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1588695 | 2018-10-16 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Bouncycastle Search vendor "Bouncycastle" | Legion-of-the-bouncy-castle-java-crytography-api Search vendor "Bouncycastle" for product "Legion-of-the-bouncy-castle-java-crytography-api" | <= 1.55 Search vendor "Bouncycastle" for product "Legion-of-the-bouncy-castle-java-crytography-api" and version " <= 1.55" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
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