CVE-2012-6422
First published: Tue Dec 18 2012(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| MEIZU MX | ||
| Samsung Galaxy Note 2 firmware | ||
| Samsung Galaxy S2 |
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Reference Links
- 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
Frequently Asked Questions
What is the severity of CVE-2012-6422?
CVE-2012-6422 is considered a critical severity vulnerability due to its ability to allow unauthorized access to physical memory.
How do I fix CVE-2012-6422?
To fix CVE-2012-6422, users should update their device to the latest firmware that addresses the permissions issue for /dev/exynos-mem.
Which devices are affected by CVE-2012-6422?
CVE-2012-6422 affects devices such as the Samsung Galaxy S2, Galaxy Note 2, and MEIZU MX models.
What type of access does CVE-2012-6422 provide to attackers?
CVE-2012-6422 allows attackers to read or write arbitrary physical memory, potentially allowing them to escalate privileges.
What are the implications of CVE-2012-6422 for users?
The implications of CVE-2012-6422 for users include the risk of privacy breaches and unauthorized access to sensitive data stored on affected devices.
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