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...
Keywords:
Status: CLOSED ERRATA
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:
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: 2023-08-08 16:54 UTC (History)
60 users (show)

Fixed In Version: bouncycastle 1.56
Clone Of:
Environment:
Last Closed: 2019-06-10 10:27:49 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2669 0 None None None 2018-09-11 07:57:57 UTC
Red Hat Product Errata RHSA-2018:2927 0 None None None 2018-10-16 15:25:59 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.
Note You need to log in before you can comment on or make changes to this bug.