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CVE-2016-1000338
Good to know:
Date: May 31, 2018
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.
Language: Java
Severity Score
Related Resources (15)
Severity Score
Weakness Type (CWE)
Improper Verification of Cryptographic Signature
CWE-347Top Fix
Upgrade Version
Upgrade to version org.bouncycastle:bcprov-debug-jdk15on:1.55,org.bouncycastle:bcprov-debug-jdk14:1.55,org.bouncycastle:bcprov-ext-jdk14:1.55,org.bouncycastle:bcprov-ext-jdk15on:1.55,org.bouncycastle:bcprov-jdk14:1.55,org.bouncycastle:bcprov-jdk15on:1.55,org.bouncycastle:bcprov-ext-debug-jdk15on:1.55
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | HIGH |
| Availability (A): | NONE |
CVSS v2
| Base Score: |
|
|---|---|
| Access Vector (AV): | NETWORK |
| Access Complexity (AC): | LOW |
| Authentication (AU): | NONE |
| Confidentiality (C): | NONE |
| Integrity (I): | PARTIAL |
| Availability (A): | NONE |
| Additional information: |