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AUSCERT External Security Bulletin Redistribution
botan2 -- ECDSA side channel
21 August 2018
AusCERT Security Bulletin Summary
Operating System: FreeBSD
Impact/Access: Access Privileged Data -- Existing Account
CVE Names: CVE-2018-12435
Comment: This advisory references vulnerabilities in products which run on
platforms other than FreeBSD. It is recommended that administrators
running botan check for an updated version of the software for their
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botan2 -- ECDSA side channel
2.5.0 <= botan2 < 2.7.0
VuXML ID 7762d7ad-2e38-41d2-9785-c51f653ba8bd
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.
CVE Name CVE-2018-12435
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