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CVE-2011-1823

Known Exploited (CISA KEV)HIGH

7.8

CVSS Severity Score

EPSS Score49.1320%

EPSS Percentile92.28th

PublishedJun 9, 2011

Last ModifiedApr 21, 2026

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.

Affected Platforms (CPE)

💻

Google

Android

>= 2.0 and < 2.3.4

💻

Google

Android

= 3.0

References & Advisories

🔗 http://android.git.kernel.org/?p=platform/system/core.git%3Ba=commit%3Bh=b620a0b1c7ae486e979826200e8e441605b0a5d6

🔗 http://android.git.kernel.org/?p=platform/system/netd.git%3Ba=commit%3Bh=79b579c92afc08ab12c0a5788d61f2dd2934836f

🔗 http://android.git.kernel.org/?p=platform/system/vold.git%3Ba=commit%3Bh=c51920c82463b240e2be0430849837d6fdc5352e

🔗 http://androidcommunity.com/gingerbreak-root-for-gingerbread-app-20110421/

🔗 http://c-skills.blogspot.com/2011/04/yummy-yummy-gingerbreak.html

🔗 http://forum.xda-developers.com/showthread.php?t=1044765

🔗 http://www.androidpolice.com/2011/05/03/google-patches-gingerbreak-exploit-but-dont-worry-we-still-have-root-for-now/

🔗 http://xorl.wordpress.com/2011/04/28/android-vold-mpartminors-signedness-issue/

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