CVE-2020-14966 - CVE House
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Status published High CVE-2020-14966

An issue was discovered in the jsrsasign package through 8.0.18...

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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CVE-2020-14968
An issue was discovered in the jsrsasign package before 8.0.17...
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CVE-2020-14967
An issue was discovered in the jsrsasign package before 8.0.18...
Critical 9.8

Affected Vendor

Affected Software

jsrsasign, max data
Vulnerable Versions:
0

Timeline

Official Publish: June 22nd, 2020
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.