Bug 1588715 (CVE-2016-1000342) - CVE-2016-1000342 bouncycastle: ECDSA improper validation of ASN.1 encoding of signature
Summary: CVE-2016-1000342 bouncycastle: ECDSA improper validation of ASN.1 encoding of...
Status: NEW
Alias: CVE-2016-1000342
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,public=20180607,repor...
Keywords: Security
Depends On: 1588716 1588717 1588718 1589582 1589583 1592662
Blocks: 1588310
TreeView+ depends on / blocked
 
Reported: 2018-06-07 18:27 UTC by Pedro Sampaio
Modified: 2019-05-15 22:41 UTC (History)
60 users (show)

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Clone Of:
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Last Closed:


Attachments (Terms of Use)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2669 None None None 2018-09-11 07:57 UTC
Red Hat Product Errata RHSA-2018:2927 None None None 2018-10-16 15:25 UTC

Description Pedro Sampaio 2018-06-07 18:27:08 UTC
In the Bouncy Castle JCE Provider version 1.55 and earlier ECDSA does not fully
validate ASN.1 encoding of signature on verification. It is possible to inject
extra elements in the sequence making up the signature and still have it
validate, which in some cases may allow the introduction of 'invisible' data
into a signed structure.

Upstream patch:

https://github.com/bcgit/bc-java/commit/843c2e60f67d71faf81d236f448ebbe56c62c647#diff-25c3c78db788365f36839b3f2d3016b9

Comment 1 Pedro Sampaio 2018-06-07 18:28:12 UTC
Created bouncycastle tracking bugs for this issue:

Affects: epel-all [bug 1588718]
Affects: fedora-all [bug 1588717]

Comment 3 Mat Booth 2018-06-07 20:10:48 UTC
(In reply to Pedro Sampaio from comment #1)
> Affects: fedora-all [bug 1588717]

Fedora already carries bouncycastle newer than 1.56, so I will close this bug.

Comment 6 Kurt Seifried 2018-06-10 20:29:39 UTC
Statement:

This issue affects the versions of bouncycastle as shipped with Red Hat Subscription Asset Manager 1.x. Red Hat Product Security has rated this issue as having a security impact of Moderate. No update is planned for this product at this time. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

Comment 8 errata-xmlrpc 2018-09-11 07:57:36 UTC
This issue has been addressed in the following products:

  Red Hat JBoss Fuse

Via RHSA-2018:2669 https://access.redhat.com/errata/RHSA-2018:2669

Comment 9 errata-xmlrpc 2018-10-16 15:25:36 UTC
This issue has been addressed in the following products:

  Red Hat Satellite 6.4 for RHEL 7

Via RHSA-2018:2927 https://access.redhat.com/errata/RHSA-2018:2927

Comment 11 Joshua Padman 2019-05-15 22:41:27 UTC
This vulnerability is out of security support scope for the following product:
 * Red Hat JBoss Data Virtualization & Services 6

Please refer to https://access.redhat.com/support/policy/updates/jboss_notes for more details.


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