# CVE-2011-1823

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.

- Page: https://www.vulneraibility.com/cve/CVE-2011-1823
- CVSS: 7.8
- Known exploited: yes, in CISA KEV since 2022-09-08; CISA due date 2022-09-29
- EPSS: 41.37% (percentile 98.7)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2025-02-07)
- Weakness: CWE-190
- Published: 2011-06-09

## Affected

- google:android

## References

- [other] http://android.git.kernel.org/?p=platform/system/netd.git%3Ba=commit%3Bh=79b579c92afc08ab12c0a5788d61f2dd2934836f
- [other] http://android.git.kernel.org/?p=platform/system/core.git%3Ba=commit%3Bh=b620a0b1c7ae486e979826200e8e441605b0a5d6
- [other] http://c-skills.blogspot.com/2011/04/yummy-yummy-gingerbreak.html
- [other] http://androidcommunity.com/gingerbreak-root-for-gingerbread-app-20110421/
- [other] http://android.git.kernel.org/?p=platform/system/vold.git%3Ba=commit%3Bh=c51920c82463b240e2be0430849837d6fdc5352e
- [other] http://xorl.wordpress.com/2011/04/28/android-vold-mpartminors-signedness-issue/
- [other] https://exchange.xforce.ibmcloud.com/vulnerabilities/67977
- [other] http://www.androidpolice.com/2011/05/03/google-patches-gingerbreak-exploit-but-dont-worry-we-still-have-root-for-now/
- [other] http://forum.xda-developers.com/showthread.php?t=1044765
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-1823

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.