cve-2018-20187
Vulnerability from cvelistv5
Published
2019-03-08 19:00
Modified
2024-08-05 11:58
Severity ?
Summary
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
cve@mitre.orghttps://botan.randombit.net/news.htmlRelease Notes, Vendor Advisory
cve@mitre.orghttps://botan.randombit.net/security.htmlVendor Advisory
cve@mitre.orghttps://github.com/crocs-muni/ECTesterNot Applicable, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://botan.randombit.net/news.htmlRelease Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://botan.randombit.net/security.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/crocs-muni/ECTesterNot Applicable, Third Party Advisory
Impacted products
Vendor Product Version
Show details on NVD website

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