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ubuntucveUbuntu.comUB:CVE-2016-1000339
HistoryJun 04, 2018 - 12:00 a.m.

CVE-2016-1000339

2018-06-0400:00:00
ubuntu.com
ubuntu.com
8

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

0.003 Low

EPSS

Percentile

70.4%

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.

OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarchbouncycastle< 1.49+dfsg-2ubuntu0.1UNKNOWN
ubuntu16.04noarchbouncycastle< anyUNKNOWN

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

0.003 Low

EPSS

Percentile

70.4%