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[email protected]CVE-2016-1000342

HistoryJun 04, 2018 - 1:29 p.m.

CVE-2016-1000342

2018-06-0413:29:00

CWE-347

[email protected]

web.nvd.nist.gov

cve-2016-1000342

bouncy castle

jce provider

ecdsa

asn.1 encoding

signature validation

nvd

5 Medium

CVSS2

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

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

7.2 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

77.3%

JSON

In the Bouncy Castle JCE Provider version 1.55 and earlier ECDSA does not fully validate ASN.1 encoding of signature on verification. It is possible to inject extra elements in the sequence making up the signature and still have it validate, which in some cases may allow the introduction of ‘invisible’ data into a signed structure.

Affected configurations

NVD

Node

bouncycastlelegion-of-the-bouncy-castle-java-crytography-apiRange≤1.55

Node

debiandebian_linuxMatch8.0

CPENameOperatorVersion
bouncycastle:legion-of-the-bouncy-castle-java-crytography-apibouncycastle legion-of-the-bouncy-castle-java-crytography-apile1.55