Detections
Analytics

GLSA-200705-20 : Blackdown Java: Applet privilege escalation

high Nessus Plugin ID 25341

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200705-20 (Blackdown Java: Applet privilege escalation)

 Chris Evans has discovered multiple buffer overflows in the Sun JDK and the Sun JRE possibly related to various AWT and font layout functions.
 Tom Hawtin has discovered an unspecified vulnerability in the Sun JDK and the Sun JRE relating to unintended applet data access. He has also discovered multiple other unspecified vulnerabilities in the Sun JDK and the Sun JRE allowing unintended Java applet or application resource acquisition. Additionally, a memory corruption error has been found in the handling of GIF images with zero width field blocks.
 Impact :

 An attacker could entice a user to run a specially crafted Java applet or application that could read, write, or execute local files with the privileges of the user running the JVM, access data maintained in other Java applets, or escalate the privileges of the currently running Java applet or application allowing for unauthorized access to system resources.
 Workaround :

 Disable the 'nsplugin' USE flag in order to prevent web applets from being run.

Solution

Since there is no fixed update from Blackdown and since the flaw only occurs in the applets, the 'nsplugin' USE flag has been masked in the portage tree. Emerge the ebuild again in order to fix the vulnerability. Another solution is to switch to another Java implementation such as the Sun implementation (dev-java/sun-jdk and dev-java/sun-jre-bin).
 # emerge --sync # emerge --ask --oneshot --verbose 'dev-java/blackdown-jdk' # emerge --ask --oneshot --verbose 'dev-java/blackdown-jre'

See Also

https://security.gentoo.org/glsa/200705-20

Plugin Details

Severity: High

ID: 25341

File Name: gentoo_GLSA-200705-20.nasl

Version: 1.15

Type: local

Published: 5/29/2007

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:blackdown-jdk, p-cpe:/a:gentoo:linux:blackdown-jre, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 5/26/2007

Vulnerability Publication Date: 12/19/2006

Reference Information

CVE: CVE-2006-6731, CVE-2006-6736, CVE-2006-6737, CVE-2006-6745

GLSA: 200705-20