A side-channel issue was discovered in Botan before 2.9.0. An attacker capable of precisely measuring the time taken for ECC key generation may be able to derive information about the high bits of the secret key, as the function to derive the public point from the secret scalar uses an unblinded Montgomery ladder whose loop iteration count depends on the bitlength of the secret. This issue affects only key generation, not ECDSA signatures or ECDH key agreement.
References
| Link | Resource |
|---|---|
| https://botan.randombit.net/news.html | Release Notes Vendor Advisory |
| https://botan.randombit.net/security.html | Vendor Advisory |
| https://github.com/crocs-muni/ECTester | Not Applicable Third Party Advisory |
| https://botan.randombit.net/news.html | Release Notes Vendor Advisory |
| https://botan.randombit.net/security.html | Vendor Advisory |
| https://github.com/crocs-muni/ECTester | Not Applicable Third Party Advisory |
Configurations
History
21 Nov 2024, 04:01
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://botan.randombit.net/news.html - Release Notes, Vendor Advisory | |
| References | () https://botan.randombit.net/security.html - Vendor Advisory | |
| References | () https://github.com/crocs-muni/ECTester - Not Applicable, Third Party Advisory |
Information
Published : 2019-03-08 19:29
Updated : 2024-11-21 04:01
NVD link : CVE-2018-20187
Mitre link : CVE-2018-20187
CVE.ORG link : CVE-2018-20187
JSON object : View
Products Affected
botan_project
- botan
CWE
CWE-320
Key Management Errors