CVEvulnerability
CVE-2020-14966
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-06-22
- Last modified
- 2026-06-22
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-347
Description
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.
Affected configurations
• kjur jsrsasign (<= 8.0.18)
• netapp max data
Related
Weakness · CWE (1)
- CWE-347 Improper Verification of Cryptographic Signature weakness
References
- https://github.com/kjur/jsrsasign/issues/437 Exploit, Issue Tracking, Third Party Advisory
- 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://kjur.github.io/jsrsasign/ Release Notes, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200724-0001/ Third Party Advisory
- https://www.npmjs.com/package/jsrsasign Product, Third Party Advisory
- https://github.com/kjur/jsrsasign/issues/437 Exploit, Issue Tracking, Third Party Advisory
- 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://kjur.github.io/jsrsasign/ Release Notes, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200724-0001/ Third Party Advisory
- https://www.npmjs.com/package/jsrsasign Product, Third Party Advisory