CVE-2012-6422 Information

Description

The kernel in Samsung Galaxy S2 Galaxy Note 2 MEIZU MX and possibly other Android devices when running an Exynos 4210 or 4412 processor uses weak permissions (0666) for /dev/exynos-mem which allows attackers to read or write arbitrary physical memory and gain privileges via a crafted application as demonstrated by ExynosAbuse.

Reference

http://arstechnica.com/security/2012/12/developer-warns-of-critical-vulnerability-in-many-samsung-smartphones/ http://forum.xda-developers.com/showthread.php?p=35469999 http://forum.xda-developers.com/showthread.php?t=2051290 http://osvdb.org/88467 http://project-voodoo.org/articles/instant-fix-app-for-exynos-mem-abuse-vulnerability-no-root-required-reversible http://www.sammobile.com/2012/12/16/major-vulnerability-found-on-exynos-4-devices/ http://www.securityweek.com/new-vulnerability-exposed-samsungs-android-devices