What’s Vulnerable › Vulnerabilities

CVE-2020-14968

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-06-22 · updated 2026-06-22
• Weakness: CWE-119

Description

An issue was discovered in the jsrsasign package before 8.0.17 for Node.js. Its RSASSA-PSS (RSA-PSS) implementation does not detect signature manipulation/modification by prepending '\0' bytes to a signature (it accepts these modified signatures as valid). An attacker can abuse this behavior in an application by creating multiple valid signatures where only one signature should exist. Also, an attacker might prepend these bytes with the goal of triggering memory corruption issues.

Affected products

• jsrsasign: before 8.0.17 — fixed in 8.0.17
• NetApp Max Data: all versions

How to fix

Upgrade to a fixed version: jsrsasign 8.0.17. Check the vendor advisory for mitigations.

References

• https://github.com/kjur/jsrsasign/issues/438
• https://github.com/kjur/jsrsasign/releases/tag/8.0.17
• https://github.com/kjur/jsrsasign/releases/tag/8.0.18
• https://kjur.github.io/jsrsasign/
• https://security.netapp.com/advisory/ntap-20200724-0001/
• https://www.npmjs.com/package/jsrsasign
• https://github.com/kjur/jsrsasign/issues/438
• https://github.com/kjur/jsrsasign/releases/tag/8.0.17
• https://github.com/kjur/jsrsasign/releases/tag/8.0.18
• https://kjur.github.io/jsrsasign/
• https://security.netapp.com/advisory/ntap-20200724-0001/
• https://www.npmjs.com/package/jsrsasign

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