CVE-2012-4681

Description

Multiple vulnerabilities in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 6 and earlier allow remote attackers to execute arbitrary code via a crafted applet that bypasses SecurityManager restrictions by (1) using com.sun.beans.finder.ClassFinder.findClass and leveraging an exception with the forName method to access restricted classes from arbitrary packages such as sun.awt.SunToolkit, then (2) using "reflection with a trusted immediate caller" to leverage the getField method to access and modify private fields, as exploited in the wild in August 2012 using Gondzz.class and Gondvv.class.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
icedtea-web	12.10 quantal	Not affected
	12.04 LTS precise	Not affected
	11.10 oneiric	Not affected
	11.04 natty	Not affected
	10.04 LTS lucid	Not affected
	8.04 LTS hardy	Not in release
openjdk-6	12.10 quantal	Not affected
	12.04 LTS precise	Not affected
	11.10 oneiric	Not affected
	11.04 natty	Not affected
	10.04 LTS lucid	Not affected
	8.04 LTS hardy	Ignored end of life
openjdk-6b18	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	11.10 oneiric	Not affected
	11.04 natty	Not affected
	10.04 LTS lucid	Not affected
	8.04 LTS hardy	Not in release
openjdk-7	12.10 quantal	Not affected
	12.04 LTS precise	Not affected
	11.10 oneiric	Fixed 7u9-2.3.3-0ubuntu1~11.10.1
	11.04 natty	Not in release
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Not in release
sun-java5	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	11.10 oneiric	Not in release
	11.04 natty	Not in release
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Ignored end of life
sun-java6	12.10 quantal	Not in release
	12.04 LTS precise	Not in release
	11.10 oneiric	Not in release
	11.04 natty	Not in release
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Ignored end of life

Notes

mdeslaur

in lucid+, NetX and the plugin moved to the icedtea-web package

tyhicks

Per oss-security thread, OpenJDK <= 7u4-b31 is also affected sbeattie verified that the openjdk vulnerability test does not work on openjdk-6 in precise

Severity score breakdown

CVSS version: CVSS v3.0

Base score 9.8 · Critical

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	9.8 · Critical
Exploitability score	-
Impact score	-

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

Cvss 3 Severity Score