CVE-2020-14967

CriticalCVSS 9.8/10Last modified Jun 22, 2026

Description

An issue was discovered in the jsrsasign package before 8.0.18 for Node.js. Its RSA PKCS1 v1.5 decryption implementation does not detect ciphertext modification by prepending '\0' bytes to ciphertexts (it decrypts modified ciphertexts without error). An attacker might prepend these bytes with the goal of triggering memory corruption issues.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-119

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/kjur/jsrsasign/issues/439Exploit, Issue Tracking, Third Party Advisory
https://github.com/kjur/jsrsasign/releases/tag/8.0.17Release Notes, Third Party Advisory
https://github.com/kjur/jsrsasign/releases/tag/8.0.18Release 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/jsrsasignProduct, Third Party Advisory
https://github.com/kjur/jsrsasign/issues/439Exploit, Issue Tracking, Third Party Advisory
https://github.com/kjur/jsrsasign/releases/tag/8.0.17Release Notes, Third Party Advisory
https://github.com/kjur/jsrsasign/releases/tag/8.0.18Release 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/jsrsasignProduct, Third Party Advisory

Timeline

Published: Jun 22, 2020
Last modified: Jun 22, 2026
NVD status: Modified

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