CVE-2019-14859
CVSS V2 Medium 6.4
CVSS V3 Critical 9.1
Description
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.
Overview
- CVE ID
- CVE-2019-14859
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-01-02T15:15:11
- Last Modified Date
- 2021-08-04T17:15:13
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:python-ecdsa_project:python-ecdsa:*:*:*:*:*:*:*:* | 1 | OR | 0.13.3 | |
| cpe:2.3:a:redhat:ceph_storage:2.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:redhat:ceph_storage:3.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:redhat:openstack:14:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:redhat:openstack:15:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 6.4
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 9.1
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859 | Exploit Issue Tracking Patch Third Party Advisory |
| https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3 | Release Notes Third Party Advisory |
| https://github.com/warner/python-ecdsa/issues/114 | Exploit Third Party Advisory |
| https://pypi.org/project/ecdsa/0.13.3/ | Release Notes Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-14859 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14859 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:58:32 | Added to TrackCVE | |||
| 2022-12-04 08:52:47 | 2020-01-02T15:15Z | 2020-01-02T15:15:11 | CVE Published Date | updated |
| 2022-12-04 08:52:47 | 2021-08-04T17:15:13 | CVE Modified Date | updated | |
| 2022-12-04 08:52:47 | Analyzed | Vulnerability Status | updated |