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CVE-2017-3539

Published: 24 April 2017

Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent: Security). Supported versions that are affected are Java SE: 6u141, 7u131 and 8u121; Java SE Embedded: 8u121. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java SE, Java SE Embedded accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.0 Base Score 3.1 (Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N).

From the Ubuntu Security Team

It was discovered that OpenJDK allowed MD5 to be used as an algorithm for JAR integrity verification. An attacker could possibly use this to modify the contents of a JAR file without detection.

Notes

AuthorNote
sbeattie
see openjdk cryptography roadmap
https://www.java.com/en/jre-jdk-cryptoroadmap.html
update treats JAR files signed with MD5 as unsigned JARs by
default. The jdk.jar.disabledAlgorithms security property can be
modified to work around this; see the openjdk release notes in the
References section for more details.

Priority

Low

Cvss 3 Severity Score

3.1

Score breakdown

Status

Package Release Status
openjdk-6
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Ignored
(end of life)
trusty Does not exist
(trusty was needs-triage)
upstream Needs triage

xenial Does not exist

yakkety Does not exist

zesty Does not exist

openjdk-7
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Ignored
(end of life)
trusty
Released (7u131-2.6.9-0ubuntu0.14.04.1)
upstream Needs triage

xenial Does not exist

yakkety Does not exist

zesty Does not exist

openjdk-8
Launchpad, Ubuntu, Debian
artful Not vulnerable
(8u131-b11-1)
bionic Not vulnerable
(8u131-b11-1)
cosmic Not vulnerable
(8u131-b11-1)
disco Not vulnerable
(8u131-b11-1)
precise Does not exist

trusty Does not exist

upstream Needs triage

xenial
Released (8u131-b11-0ubuntu1.16.04.2)
yakkety
Released (8u131-b11-0ubuntu1.16.10.2)
zesty
Released (8u131-b11-0ubuntu1.17.04.1)

Severity score breakdown

Parameter Value
Base score 3.1
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N