CVE-2016-1000342

bouncycastle: ECDSA improper validation of ASN.1 encoding of signature

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

En Bouncy Castle JCE Provider en versiones 1.55 y anteriores, el ECDSA no valida completamente el cifrado ASN.1 de la firma en verificación. Es posible inyectar elementos extra en la secuencia que forma la firma y, aún así, validarla. En algunos casos, esto podría permitir la introducción de datos "invisibles" en una estructura firmada.

Red Hat Fuse, based on Apache ServiceMix, provides a small-footprint, flexible, open source enterprise service bus and integration platform. This release of Red Hat Fuse 7.1 serves as a replacement for Red Hat Fuse 7.0, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Issues addressed include code execution, cross site scripting, denial of service, path sanitization, and traversal vulnerabilities.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-06-04 CVE Reserved
2018-06-04 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-295: Improper Certificate Validation
CWE-347: Improper Verification of Cryptographic Signature

CAPEC

References (9)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html	Mailing List
https://security.netapp.com/advisory/ntap-20181127-0004	X_refsource_confirm
https://www.oracle.com/security-alerts/cpuoct2020.html	X_refsource_misc

URL	Date	SRC

URL	Date	SRC
https://github.com/bcgit/bc-java/commit/843c2e60f67d71faf81d236f448ebbe56c62c647#diff-25c3c78db788365f36839b3f2d3016b9	2020-10-20

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2018:2669	2020-10-20
https://access.redhat.com/errata/RHSA-2018:2927	2020-10-20
https://usn.ubuntu.com/3727-1	2020-10-20
https://access.redhat.com/security/cve/CVE-2016-1000342	2018-10-16
https://bugzilla.redhat.com/show_bug.cgi?id=1588715	2018-10-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Bouncycastle Search vendor "Bouncycastle"		Legion-of-the-bouncy-castle-java-crytography-api Search vendor "Bouncycastle" for product "Legion-of-the-bouncy-castle-java-crytography-api"				<= 1.55 Search vendor "Bouncycastle" for product "Legion-of-the-bouncy-castle-java-crytography-api" and version " <= 1.55"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected