Bug 1095854 – VUL-0: CVE-2016-1000340: bouncycastle: In the Bouncy Castle JCE Provider versions 1.51 to 1.55, a carry propagation bugwas introduced in the implementation of squaring for several raw math classeshave been fixed (org.bouncycastle.math.raw.Nat???). Thes

Bug 1095854 - (CVE-2016-1000340) VUL-0: CVE-2016-1000340: bouncycastle: In the Bouncy Castle JCE Provider versions 1.51 to 1.55, a carry propagation bugwas introduced in the implementation of squaring for several raw math classeshave been fixed (org.bouncycastle.math.raw.Nat???). Thes

(CVE-2016-1000340)
Summary:	VUL-0: CVE-2016-1000340: bouncycastle: In the Bouncy Castle JCE Provider vers...

Status:	RESOLVED FIXED

Classification:	Novell Products
Product:	SUSE Security Incidents
Classification:	Novell Products
Component:	Incidents
Version:	unspecified
Hardware:	Other Other

Priority:	P3 - Medium Severity: Normal
Target Milestone:	---
Assigned To:	Security Team bot
QA Contact:	Security Team bot

URL:	https://smash.suse.de/issue/207117/
Whiteboard:	CVSSv3:RedHat:CVE-2016-1000340:2.9:(A...
Keywords:

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Reported:	2018-06-04 15:34 UTC by Marcus Meissner
Modified:	2020-04-23 15:32 UTC (History)
CC List:	2 users (show)

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Found By:	Security Response Team
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Description Marcus Meissner 2018-06-04 15:34:36 UTC

CVE-2016-1000340

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.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-1000340
https://github.com/bcgit/bc-java/commit/790642084c4e0cadd47352054f868cc8397e2c00#diff-e5934feac8203ca0104ab291a3560a31

Comment 1 Swamp Workflow Management 2018-06-06 10:30:33 UTC

This is an autogenerated message for OBS integration:
This bug (1095854) was mentioned in
https://build.opensuse.org/request/show/614511 42.3 / bouncycastle

Comment 2 Swamp Workflow Management 2018-06-14 10:09:04 UTC

openSUSE-SU-2018:1689-1: An update that fixes 11 vulnerabilities is now available.

Category: security (moderate)
Bug References: 1072697,1095722,1095849,1095850,1095852,1095853,1095854,1096022,1096024,1096025,1096026
CVE References: CVE-2016-1000338,CVE-2016-1000339,CVE-2016-1000340,CVE-2016-1000341,CVE-2016-1000342,CVE-2016-1000343,CVE-2016-1000344,CVE-2016-1000345,CVE-2016-1000346,CVE-2016-1000352,CVE-2017-13098
Sources used:
openSUSE Leap 42.3 (src):    bouncycastle-1.59-23.3.1

Comment 3 Swamp Workflow Management 2018-07-19 11:10:25 UTC

This is an autogenerated message for OBS integration:
This bug (1095854) was mentioned in
https://build.opensuse.org/request/show/624022 Factory / bouncycastle

Comment 4 Swamp Workflow Management 2018-09-14 15:30:26 UTC

This is an autogenerated message for OBS integration:
This bug (1095854) was mentioned in
https://build.opensuse.org/request/show/635779 15.0 / bouncycastle

Comment 5 Alexandros Toptsoglou 2020-04-23 15:32:13 UTC

Leap 15.1 is not affected