CVE-2016-3995

NameCVE-2016-3995
DescriptionThe timing attack protection in Rijndael::Enc::ProcessAndXorBlock and Rijndael::Dec::ProcessAndXorBlock in Crypto++ (aka cryptopp) before 5.6.4 may be optimized out by the compiler, which allows attackers to conduct timing attacks.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libcrypto++ (PTS)jessie, jessie (lts)5.6.1-6+deb8u3fixed
stretch5.6.4-7fixed
buster5.6.4-8fixed
bullseye8.4.0-1fixed
bookworm8.7.0+git220824-1fixed
sid, trixie8.9.0-1.1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libcrypto++sourcewheezy5.6.1-6+deb7u2
libcrypto++sourcejessie5.6.1-6+deb8u2
libcrypto++source(unstable)5.6.3-6

Notes

https://github.com/weidai11/cryptopp/issues/146
https://www.openwall.com/lists/oss-security/2016/04/10/6
Initial upload in 5.6.3-5 was incomplete

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