Vulnerability Description
The vold volume manager daemon on Android 3.0 and 2.x before 2.3.4 trusts messages that are received from a PF_NETLINK socket, which allows local users to execute arbitrary code and gain root privileges via a negative index that bypasses a maximum-only signed integer check in the DirectVolume::handlePartitionAdded method, which triggers memory corruption, as demonstrated by Gingerbreak.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Android | >= 2.0, < 2.3.4 |
Related Weaknesses (CWE)
References
- http://android.git.kernel.org/?p=platform/system/core.git%3Ba=commit%3Bh=b620a0bBroken Link
- http://android.git.kernel.org/?p=platform/system/netd.git%3Ba=commit%3Bh=79b579cBroken Link
- http://android.git.kernel.org/?p=platform/system/vold.git%3Ba=commit%3Bh=c51920cBroken Link
- http://androidcommunity.com/gingerbreak-root-for-gingerbread-app-20110421/Broken Link
- http://c-skills.blogspot.com/2011/04/yummy-yummy-gingerbreak.htmlExploitIssue Tracking
- http://forum.xda-developers.com/showthread.php?t=1044765ExploitIssue Tracking
- http://www.androidpolice.com/2011/05/03/google-patches-gingerbreak-exploit-but-dPress/Media Coverage
- http://xorl.wordpress.com/2011/04/28/android-vold-mpartminors-signedness-issue/Exploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67977Third Party AdvisoryVDB Entry
- http://android.git.kernel.org/?p=platform/system/core.git%3Ba=commit%3Bh=b620a0bBroken Link
- http://android.git.kernel.org/?p=platform/system/netd.git%3Ba=commit%3Bh=79b579cBroken Link
- http://android.git.kernel.org/?p=platform/system/vold.git%3Ba=commit%3Bh=c51920cBroken Link
- http://androidcommunity.com/gingerbreak-root-for-gingerbread-app-20110421/Broken Link
- http://c-skills.blogspot.com/2011/04/yummy-yummy-gingerbreak.htmlExploitIssue Tracking
- http://forum.xda-developers.com/showthread.php?t=1044765ExploitIssue Tracking
FAQ
What is CVE-2011-1823?
CVE-2011-1823 is a vulnerability with a CVSS score of 7.8 (HIGH). The vold volume manager daemon on Android 3.0 and 2.x before 2.3.4 trusts messages that are received from a PF_NETLINK socket, which allows local users to execute arbitrary code and gain root privileg...
How severe is CVE-2011-1823?
CVE-2011-1823 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-1823?
Check the references section above for vendor advisories and patch information. Affected products include: Google Android.