CVE-2016-1000340

Name	CVE-2016-1000340
Description	In the Bouncy Castle JCE Provider versions 1.51 to 1.55, a carry propagation bug was introduced in the implementation of squaring for several raw math classes have been fixed (org.bouncycastle.math.raw.Nat???). These classes are used by our custom elliptic curve implementations (org.bouncycastle.math.ec.custom.**), so there was the possibility of rare (in general usage) spurious calculations for elliptic curve scalar multiplications. Such errors would have been detected with high probability by the output validation for our scalar multipliers.
Source	CVE (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 Package	Release	Version	Status
bouncycastle (PTS)	jessie, jessie (lts)	1.49+dfsg-3+deb8u3	fixed
	stretch (security)	1.56-1+deb9u3	fixed
	stretch (lts), stretch	1.56-1+deb9u4	fixed
	buster (security), buster, buster (lts)	1.60-1+deb10u1	fixed
	bullseye	1.68-2	fixed
	bookworm	1.72-2	fixed
	sid, trixie	1.77-1	fixed

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

Package	Type	Release	Fixed Version	Urgency
bouncycastle	source	wheezy	(unfixed)	end-of-life
bouncycastle	source	jessie	(not affected)
bouncycastle	source	(unstable)	1.56-1

Notes

[jessie] - bouncycastle <not-affected> (Vulnerable code introduced later)
https://github.com/bcgit/bc-java/commit/790642084c4e0cadd47352054f868cc8397e2c00#diff-e5934feac8203ca0104ab291a3560a31