CVE-2016-1000338

bouncycastle: DSA does not fully validate ASN.1 encoding during signature verification allowing for injection of unsigned data

Published Jun 1, 2018 CVSS 3.1 · 7.5 High EPSS 1.8% KEV · Not listed
Description
In Bouncy Castle JCE Provider version 1.55 and earlier the DSA 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1418-1 bouncycastle security update
EUVD EUVD EUVD-2018-0506 In Bouncy Castle JCE Provider it is possible to inject extra elements in the sequence making up the signature and still have it validate
Github GHSA Github GHSA GHSA-4vhj-98r6-424h In Bouncy Castle JCE Provider it is possible to inject extra elements in the sequence making up the signature and still have it validate
Ubuntu USN Ubuntu USN USN-3727-1 Bouncy Castle vulnerabilities
History
Type Values Removed Values Added
First Time appeared Canonical
Canonical ubuntu Linux
Netapp
Netapp 7-mode Transition Tool
CPEs cpe:2.3:a:netapp:7-mode_transition_tool:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:satellite:6.4:-:*:*:*:*:*:*
cpe:2.3:a:redhat:satellite_capsule:6.4:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:*:*:*:*
Vendors & Products Canonical
Canonical ubuntu Linux
Netapp
Netapp 7-mode Transition Tool
Metrics cvssV3_0

{'score': 7.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV3_0

{'score': 4.8, 'vector': 'CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}