7.5 High
CVSS3
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
5 Medium
CVSS2
Access Vector
NETWORK
Access 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
0.002 Low
EPSS
Percentile
59.2%
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.
Author | Note |
---|---|
leosilva | trusty is not-affected. Vulnerable code was introduced later. |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 16.04 | noarch | bouncycastle | < any | UNKNOWN |
7.5 High
CVSS3
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
5 Medium
CVSS2
Access Vector
NETWORK
Access 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
0.002 Low
EPSS
Percentile
59.2%