UBUNTU-CVE-2019-14859

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Source
https://ubuntu.com/security/CVE-2019-14859
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-14859.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2019-14859
Related
Published
2019-10-14T00:00:00Z
Modified
2019-10-14T00:00:00Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:16.04:LTS / python-ecdsa

Package

Name
python-ecdsa
Purl
pkg:deb/ubuntu/python-ecdsa?arch=src?distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.13-2ubuntu0.16.04.1

Affected versions

0.*

0.13-2

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "0.13-2ubuntu0.16.04.1",
            "binary_name": "python-ecdsa"
        },
        {
            "binary_version": "0.13-2ubuntu0.16.04.1",
            "binary_name": "python3-ecdsa"
        }
    ]
}

Ubuntu:18.04:LTS / python-ecdsa

Package

Name
python-ecdsa
Purl
pkg:deb/ubuntu/python-ecdsa?arch=src?distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.13-2ubuntu0.18.04.1

Affected versions

0.*

0.13-2

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "0.13-2ubuntu0.18.04.1",
            "binary_name": "python-ecdsa"
        },
        {
            "binary_version": "0.13-2ubuntu0.18.04.1",
            "binary_name": "python3-ecdsa"
        }
    ]
}