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CVE-2020-14968
An issue was discovered in the jsrsasign package before 8.0.17 for Node.js. Its RSASSA-PSS (RSA-PSS) implementation does not detect…
Critical9.8EPSS 2.9%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.9% · top 13% of all CVEs (7 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npmjsrsasignGHSA-q3gh-5r98-j4h3 (opens in a new tab)
References (6)
- https://kjur.github.io/jsrsasign/ (opens in a new tab)x_refsource_MISCx_transferred
- https://www.npmjs.com/package/jsrsasign (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/kjur/jsrsasign/releases/tag/8.0.18 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/kjur/jsrsasign/releases/tag/8.0.17 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/kjur/jsrsasign/issues/438 (opens in a new tab)x_refsource_MISCx_transferred
- https://security.netapp.com/advisory/ntap-20200724-0001/ (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-q3gh-5r98-j4h3 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-14968)Record last updated .