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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.","epss":{"date":"2026-11-12","epss":0.41367,"percentile":0.98692},"epss_checked":1794522003,"first_seen":1793665375,"kev":{"cveID":"CVE-2011-1823","cwes":["CWE-189"],"dateAdded":"2022-09-08","dueDate":"2022-09-29","forensicTriage":"No","knownRansomwareCampaignUse":"Unknown","notes":"https://android.googlesource.com/platform/system/vold/+/c51920c82463b240e2be0430849837d6fdc5352e; https://nvd.nist.gov/vuln/detail/CVE-2011-1823","product":"Android OS","requiredAction":"Apply updates per vendor instructions.","shortDescription":"The vold volume manager daemon in Android kernel trusts messages from a PF_NETLINK 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This vulnerability is associated with GingerBreak and Exploit.AndroidOS.Lotoor.","vendorProject":"Android","vulnerabilityName":"Android OS Privilege Escalation Vulnerability"},"kev_checked":1794522003,"products":"n/a n/a","references":["http://android.git.kernel.org/?p=platform/system/netd.git%3Ba=commit%3Bh=79b579c92afc08ab12c0a5788d61f2dd2934836f","http://android.git.kernel.org/?p=platform/system/core.git%3Ba=commit%3Bh=b620a0b1c7ae486e979826200e8e441605b0a5d6","http://c-skills.blogspot.com/2011/04/yummy-yummy-gingerbreak.html","http://androidcommunity.com/gingerbreak-root-for-gingerbread-app-20110421/","http://android.git.kernel.org/?p=platform/system/vold.git%3Ba=commit%3Bh=c51920c82463b240e2be0430849837d6fdc5352e","http://xorl.wordpress.com/2011/04/28/android-vold-mpartminors-signedness-issue/","https://exchange.xforce.ibmcloud.com/vulnerabilities/67977","http://www.androidpolice.com/2011/05/03/google-patches-gingerbreak-exploit-but-dont-worry-we-still-have-root-for-now/","http://forum.xda-developers.com/showthread.php?t=1044765","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-1823"],"score":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","provider":"CISA-ADP","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"solutions":"","state":"PUBLISHED","title":"Android OS Privilege Escalation Vulnerability","updated_at":1794500401,"workarounds":""},"sources":[]}