Critical severityNVD Advisory· Published Jun 22, 2020· Updated Aug 4, 2024
CVE-2020-14968
CVE-2020-14968
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
jsrsasignnpm | >= 3.0.0, < 8.0.17 | 8.0.17 |
Affected products
2- jsrsasign/jsrsasigndescription
Patches
Vulnerability mechanics
References
16- github.com/advisories/GHSA-q3gh-5r98-j4h3ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2020-14968ghsaADVISORY
- cve.mitre.org/cgi-bin/cvename.cgighsaWEB
- github.com/kjur/jsrsasign/commit/3bcc088c727658d7235854cd2a409a904cc2ce99ghsaWEB
- github.com/kjur/jsrsasign/issues/438ghsax_refsource_MISCWEB
- github.com/kjur/jsrsasign/releases/tag/8.0.17ghsax_refsource_MISCWEB
- github.com/kjur/jsrsasign/releases/tag/8.0.18ghsax_refsource_MISCWEB
- github.com/kjur/jsrsasign/security/advisories/GHSA-q3gh-5r98-j4h3ghsaWEB
- kjur.github.io/jsrsasignghsaWEB
- kjur.github.io/jsrsasign/mitrex_refsource_MISC
- kjur.github.io/jsrsasign/api/symbols/RSAKey.htmlghsaWEB
- security.netapp.com/advisory/ntap-20200724-0001ghsaWEB
- security.netapp.com/advisory/ntap-20200724-0001/mitrex_refsource_CONFIRM
- vuldb.comghsaWEB
- www.npmjs.com/advisories/1541ghsaWEB
- www.npmjs.com/package/jsrsasignghsax_refsource_MISCWEB
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