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cve[email protected]CVE-2016-1000342
HistoryJun 04, 2018 - 1:29 p.m.

CVE-2016-1000342

2018-06-0413:29:00
CWE-347
web.nvd.nist.gov
91
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

77.2%

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 β€˜invisible’ data into a signed structure.

Affected configurations

NVD
Node
bouncycastlelegion-of-the-bouncy-castle-java-crytography-apiRange≀1.55
Node
debiandebian_linuxMatch8.0

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

77.2%