CVE-2019-14859

2020-01-0214:15:58

CWE-347

redhat

www.cve.org

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

8.9 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

61.9%

JSON

A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.

CNA Affected

[
  {
    "product": "python-ecdsa",
    "vendor": "Red Hat",
    "versions": [
      {
        "status": "affected",
        "version": "all python-ecdsa versions before 0.13.3"
      }
    ]
  }
]