Bug 983640 (CVE-2016-2833)

Summary: VUL-0: CVE-2016-2833: MozillaFirefox: Java applets bypass CSP protections (MFSA-2016-60)
Product: [Novell Products] SUSE Security Incidents Reporter: Marcus Meissner <meissner>
Component: IncidentsAssignee: Petr Cerny <pcerny>
Status: RESOLVED FIXED QA Contact: Security Team bot <security-team>
Severity: Normal    
Priority: P3 - Medium CC: wolfgang
Version: unspecified   
Target Milestone: ---   
Hardware: Other   
OS: Other   
Whiteboard:
Found By: --- Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---
Bug Depends on:    
Bug Blocks: 983549    

Description Marcus Meissner 2016-06-08 06:21:24 UTC
https://www.mozilla.org/en-US/security/advisories/mfsa2016-60/


Mozilla Foundation Security Advisory 2016-60
Java applets bypass CSP protections

Announced
    June 7, 2016
Reporter
    Matt Wobensmith
Impact
    Moderate
Products
    Firefox
Fixed in

        Firefox 47

Description

Mozilla engineer Matt Wobensmith reported that Content Security Policy (CSP) does not block the loading of cross-domain Java applets when specified by policy. This is because the Java applet is loaded by the Java plugin, which then mediates all network requests without checking against CSP. This could allow a malicious site to manipulate content through a Java applet to bypass CSP protections, allowing for possible cross-site scripting (XSS) attacks.
References

    CSP does not block cross-domain applets with object-src 'self' (CVE-2016-2833)
Comment 1 Swamp Workflow Management 2016-06-08 22:00:37 UTC
bugbot adjusting priority
Comment 2 Swamp Workflow Management 2016-06-11 12:12:44 UTC
openSUSE-SU-2016:1552-1: An update that solves 13 vulnerabilities and has two fixes is now available.

Category: security (important)
Bug References: 980384,981695,983549,983632,983638,983639,983640,983643,983644,983646,983649,983651,983652,983653,983655
CVE References: CVE-2016-2815,CVE-2016-2818,CVE-2016-2819,CVE-2016-2821,CVE-2016-2822,CVE-2016-2824,CVE-2016-2825,CVE-2016-2828,CVE-2016-2829,CVE-2016-2831,CVE-2016-2832,CVE-2016-2833,CVE-2016-2834
Sources used:
openSUSE Leap 42.1 (src):    MozillaFirefox-47.0-24.1, mozilla-nss-3.23-18.1
openSUSE 13.2 (src):    MozillaFirefox-47.0-71.1, mozilla-nss-3.23-34.1
Comment 3 Swamp Workflow Management 2016-06-11 20:08:57 UTC
openSUSE-SU-2016:1557-1: An update that solves 14 vulnerabilities and has one errata is now available.

Category: security (important)
Bug References: 980384,981695,983549,983632,983638,983639,983640,983643,983644,983646,983649,983651,983652,983653,983655
CVE References: CVE-2016-1950,CVE-2016-2815,CVE-2016-2818,CVE-2016-2819,CVE-2016-2821,CVE-2016-2822,CVE-2016-2824,CVE-2016-2825,CVE-2016-2828,CVE-2016-2829,CVE-2016-2831,CVE-2016-2832,CVE-2016-2833,CVE-2016-2834
Sources used:
openSUSE 13.1 (src):    MozillaFirefox-47.0-116.1, mozilla-nss-3.23-80.1
Comment 4 Marcus Meissner 2016-08-17 05:49:33 UTC
re;eased