Bug 1095852 – VUL-0: CVE-2016-1000341: bouncycastle: In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signaturegeneration is vulnerable to timing attack. Where timings can be closely observedfor the generation of signatures, the lack of blinding in 1.5

Bug 1095852 - (CVE-2016-1000341) VUL-0: CVE-2016-1000341: bouncycastle: In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signaturegeneration is vulnerable to timing attack. Where timings can be closely observedfor the generation of signatures, the lack of blinding in 1.5

(CVE-2016-1000341)
Summary:	VUL-0: CVE-2016-1000341: 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/207118/
Whiteboard:	CVSSv3:RedHat:CVE-2016-1000341:5.1:(A...
Keywords:

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Reported:	2018-06-04 15:32 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 15:32:28 UTC

CVE-2016-1000341

In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature
generation is vulnerable to timing attack. Where timings can be closely observed
for the generation of signatures, the lack of blinding in 1.55, or earlier, may
allow an attacker to gain information about the signature's k value and
ultimately the private value as well.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-1000341
https://github.com/bcgit/bc-java/commit/acaac81f96fec91ab45bd0412beaf9c3acd8defa#diff-e75226a9ca49217a7276b29242ec59ce

Comment 1 Swamp Workflow Management 2018-06-06 10:30:25 UTC

This is an autogenerated message for OBS integration:
This bug (1095852) was mentioned in
https://build.opensuse.org/request/show/614511 42.3 / bouncycastle

Comment 2 Swamp Workflow Management 2018-06-14 10:08:44 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 11:10:18 UTC

This is an autogenerated message for OBS integration:
This bug (1095852) was mentioned in
https://build.opensuse.org/request/show/624022 Factory / bouncycastle

Comment 4 Swamp Workflow Management 2018-09-14 15:30:18 UTC

This is an autogenerated message for OBS integration:
This bug (1095852) was mentioned in
https://build.opensuse.org/request/show/635779 15.0 / bouncycastle

Comment 5 Alexandros Toptsoglou 2020-04-23 15:32:02 UTC

Leap 15.1 is not affected