Vulnerability

CVE-2016-1000338
CVSS Score 7.5 high

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CWE

CWE-347

[CVE-2016-1000338] CWE-347: Improper Verification of Cryptographic Signature

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.

See org.bouncycastle/bcprov-jdk15on package information