CVE-2020-14966

An issue was discovered in the jsrsasign package through 8.0.18 for Node.js. It allows a malleability in ECDSA signatures by not checking overflows in the length of a sequence and '0' characters appended or prepended to an integer. The modified signatures are verified as valid. This could have a security-relevant impact if an application relied on a single canonical signature.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/kjur/jsrsasign/releases/tag/8.0.17	Release Notes Third Party Advisory
https://github.com/kjur/jsrsasign/releases/tag/8.0.18	Release Notes Third Party Advisory
https://www.npmjs.com/package/jsrsasign	Product Third Party Advisory
https://github.com/kjur/jsrsasign/issues/437	Exploit Third Party Advisory
https://kjur.github.io/jsrsasign/	Release Notes Third Party Advisory
https://security.netapp.com/advisory/ntap-20200724-0001/

Configurations

Configuration 1 (hide)

cpe:2.3:a:jsrsasign_project:jsrsasign:*:*:*:*:*:node.js:*:*

Information

Published : 2020-06-22 12:15

Updated : 2020-07-24 14:15

NVD link : CVE-2020-14966

Mitre link : CVE-2020-14966

JSON object : View

Products Affected

jsrsasign_project

jsrsasign

CWE

CWE-347

Improper Verification of Cryptographic Signature

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