CVE-2018-12435

NameCVE-2018-12435
DescriptionBotan 2.5.0 through 2.6.0 before 2.7.0 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP, related to dsa/dsa.cpp, ec_group/ec_group.cpp, and ecdsa/ecdsa.cpp. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitylow (attack range: local)
Debian Bugs901619

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
botan (PTS)buster, sid2.6.0-3fixed
botan1.10 (PTS)jessie (security), jessie1.10.8-2+deb8u2fixed
stretch1.10.16-1fixed
sid1.10.17-0.1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
botansource(unstable)2.6.0-3low901619
botan1.10source(unstable)(not affected)

Notes

- botan1.10 <not-affected> (Issue introduced in 2.5.0)
https://github.com/randombit/botan/pull/1604
https://github.com/randombit/botan/commit/48fc8df51d99f9d8ba251219367b3d629cc848e3

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