CVE-2011-1823

Severity

72%

Complexity

39%

Confidentiality

165%

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.

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 2.0 Base Score 7.2. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C).

Overview

Type

Google Android Operating System

First reported 13 years ago

2011-06-09 10:36:00

Last updated 7 years ago

2017-08-17 01:34:00

Affected Software

Google Android Operating System 2.1

2.1

Google Android Operating System 2.2

2.2

Google Android Operating System 2.2 Revision 1

2.2

Google Android Operating System 2.2.1

2.2.1

Google Android Operating System 2.2.2

2.2.2

Google Android Operating System 2.2.3

2.2.3

Google Android Operating System 2.3 Revision 1

2.3

Google Android Operating System 2.3.1

2.3.1

Google Android Operating System 2.3.2

2.3.2

Google Android Operating System 2.3.3

2.3.3

Google Android Operating System 3.0

3.0

References

http://android.git.kernel.org/?p=platform/system/core.git;a=commit;h=b620a0b1c7ae486e979826200e8e441605b0a5d6

Patch

http://android.git.kernel.org/?p=platform/system/netd.git;a=commit;h=79b579c92afc08ab12c0a5788d61f2dd2934836f

Patch

http://android.git.kernel.org/?p=platform/system/vold.git;a=commit;h=c51920c82463b240e2be0430849837d6fdc5352e

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

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

Exploit

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

Exploit

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/

Exploit

android-vold-priv-escalation(67977)

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