Overview
- 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.
- Source
- secalert@redhat.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 9.1
- Impact score
- 5.2
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Severity
- CRITICAL
CVSS 3.0
- Type
- Secondary
- Base score
- 7.4
- Impact score
- 5.2
- Exploitability score
- 2.2
- Vector string
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 6.4
- Impact score
- 4.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:P/I:P/A:N
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:python-ecdsa_project:python-ecdsa:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F7B0A174-35C3-4CBC-95FD-1359971CAE7E",
"versionEndExcluding": "0.13.3"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:redhat:ceph_storage:2.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D07DF15E-FE6B-4DAF-99BB-2147CF7D7EEA"
},
{
"criteria": "cpe:2.3:a:redhat:ceph_storage:3.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "516F4E8E-ED2F-4282-9DAB-D8B378F61258"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E722FEF7-58A6-47AD-B1D0-DB0B71B0C7AA"
},
{
"criteria": "cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "704CFA1A-953E-4105-BFBE-406034B83DED"
},
{
"criteria": "cpe:2.3:a:redhat:openstack:14:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EB7F358B-5E56-41AB-BB8A-23D3CB7A248B"
},
{
"criteria": "cpe:2.3:a:redhat:openstack:15:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "70108B60-8817-40B4-8412-796A592E4E5E"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6BBD7A51-0590-4DDF-8249-5AFA8D645CB6"
}
],
"operator": "OR"
}
]
}
]