vulnerability
FreeBSD: VID-7762d7ad-2e38-41d2-9785-c51f653ba8bd (CVE-2018-12435): botan2 -- ECDSA side channel
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:M/Au:N/C:P/I:N/A:N) | Aug 17, 2018 | Aug 18, 2018 | Dec 10, 2025 |
Severity
2
CVSS
(AV:L/AC:M/Au:N/C:P/I:N/A:N)
Published
Aug 17, 2018
Added
Aug 18, 2018
Modified
Dec 10, 2025
Description
botan2 developers report: A side channel in the ECDSA signature operation could allow a local attacker to recover the secret key. Found by Keegan Ryan of NCC Group. Bug introduced in 2.5.0, fixed in 2.7.0. The 1.10 branch is not affected.
Solution
freebsd-upgrade-package-botan2
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