CVE-2016-2849

NameCVE-2016-2849
DescriptionBotan before 1.10.13 and 1.11.x before 1.11.29 do not use a constant-time algorithm to perform a modular inverse on the signature nonce k, which might allow remote attackers to obtain ECDSA secret keys via a timing side-channel attack.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-449-1, DSA-3565-1
NVD severitymedium (attack range: remote)
Debian Bugs822698

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
botan1.10 (PTS)wheezy1.10.5-1vulnerable
wheezy (security)1.10.5-1+deb7u4fixed
jessie1.10.8-2+deb8u1fixed
jessie (security)1.10.8-2+deb8u2fixed
stretch1.10.16-1fixed
buster, sid1.10.17-0.1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
botan1.10source(unstable)1.10.13-1medium822698
botan1.10sourcejessie1.10.8-2+deb8u1mediumDSA-3565-1
botan1.10sourcewheezy1.10.5-1+deb7u1mediumDLA-449-1

Notes

http://botan.randombit.net/security.html
Introduced in 1.7.15, fixed in 1.10.13 and 1.11.29
FIX https://github.com/randombit/botan/commit/bcf13fa153a11b3e0ad54e2af6962441cea3adf1

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