CVE-2020-14966

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
mitreCNA
---
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CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 44%
VendorProductVersion
jsrsasign_projectjsrsasign
𝑥
≤ 8.0.18
netappmax_data
-
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/kjur/jsrsasign/issues/437
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/437
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