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ubuntucveUbuntu.comUB:CVE-2016-1000340
HistoryJun 04, 2018 - 12:00 a.m.

CVE-2016-1000340

2018-06-0400:00:00
ubuntu.com
ubuntu.com
13

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.002

Percentile

60.1%

In the Bouncy Castle JCE Provider versions 1.51 to 1.55, a carry
propagation bug was introduced in the implementation of squaring for
several raw math classes have been fixed
(org.bouncycastle.math.raw.Nat???). These classes are used by our custom
elliptic curve implementations (org.bouncycastle.math.ec.custom.**), so
there was the possibility of rare (in general usage) spurious calculations
for elliptic curve scalar multiplications. Such errors would have been
detected with high probability by the output validation for our scalar
multipliers.

Notes

Author Note
leosilva trusty is not-affected. Vulnerable code was introduced later.
OSVersionArchitecturePackageVersionFilename
ubuntu16.04noarchbouncycastle< anyUNKNOWN

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.002

Percentile

60.1%