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
| Link | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859 | Exploit Issue Tracking Patch Third Party Advisory |
| https://github.com/warner/python-ecdsa/issues/114 | Exploit Third Party Advisory |
| https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3 | Release Notes Third Party Advisory |
| https://pypi.org/project/ecdsa/0.13.3/ | Release Notes Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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Configuration 4 (hide)
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History
04 Aug 2021, 17:15
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:redhat:openstack:13.0:*:*:*:*:*:*:* cpe:2.3:a:redhat:openstack:14.0:*:*:*:*:*:*:* |
cpe:2.3:a:redhat:openstack:15:*:*:*:*:*:*:* cpe:2.3:a:redhat:openstack:14:*:*:*:*:*:*:* cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:* |
Information
Published : 2020-01-02 15:15
Updated : 2024-02-04 20:39
NVD link : CVE-2019-14859
Mitre link : CVE-2019-14859
CVE.ORG link : CVE-2019-14859
JSON object : View
Products Affected
python-ecdsa_project
- python-ecdsa
redhat
- ceph_storage
- virtualization
- openstack
CWE
CWE-347
Improper Verification of Cryptographic Signature