CVE-2011-1823

high-risk
Published 2011-06-09

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.

Do I need to act?

!
38.3% chance of exploitation in next 30 days
EPSS score — higher than 62% of all CVEs
!
CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (2)

Affected Vendors

Google

References (19)

Broken Link http://android.git.kernel.org/?p=platform/system/core.git%3Ba=commit%3Bh=b620a0b...
Broken Link http://android.git.kernel.org/?p=platform/system/netd.git%3Ba=commit%3Bh=79b579c...
Broken Link http://android.git.kernel.org/?p=platform/system/vold.git%3Ba=commit%3Bh=c51920c...
Broken Link http://androidcommunity.com/gingerbreak-root-for-gingerbread-app-20110421/
Exploit http://c-skills.blogspot.com/2011/04/yummy-yummy-gingerbreak.html
Exploit http://forum.xda-developers.com/showthread.php?t=1044765
Press/Media Coverage http://www.androidpolice.com/2011/05/03/google-patches-gingerbreak-exploit-but-d...
Exploit http://xorl.wordpress.com/2011/04/28/android-vold-mpartminors-signedness-issue/
Third Party Advisory https://exchange.xforce.ibmcloud.com/vulnerabilities/67977
Broken Link http://android.git.kernel.org/?p=platform/system/core.git%3Ba=commit%3Bh=b620a0b...
Broken Link http://android.git.kernel.org/?p=platform/system/netd.git%3Ba=commit%3Bh=79b579c...
Broken Link http://android.git.kernel.org/?p=platform/system/vold.git%3Ba=commit%3Bh=c51920c...
Broken Link http://androidcommunity.com/gingerbreak-root-for-gingerbread-app-20110421/
Exploit http://c-skills.blogspot.com/2011/04/yummy-yummy-gingerbreak.html
Exploit http://forum.xda-developers.com/showthread.php?t=1044765
Press/Media Coverage http://www.androidpolice.com/2011/05/03/google-patches-gingerbreak-exploit-but-d...
Exploit http://xorl.wordpress.com/2011/04/28/android-vold-mpartminors-signedness-issue/
Third Party Advisory https://exchange.xforce.ibmcloud.com/vulnerabilities/67977
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-...
55
/ 100
high-risk
Severity 24/34 · High
Exploitability 24/34 · High
Exposure 7/34 · Low