CVE-2011-1823
Android OS Privilege Escalation Vulnerability
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Android OS, fix it now.
CISA required action: Apply updates per vendor instructions.
US federal civilian agencies must remediate by Sep 29, 2022.
Patch status
No official fix confirmed yet
Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.
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.
Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.
Affected products
| Product | Vendor | Affected versions | Fixed in | Source |
|---|---|---|---|---|
| Android | >= 2.0, < 2.3.4; 3.0 | 2.3.4 | NVD | |
| Android OS | Android | — | — | KEV |
Sources: NVD = NIST National Vulnerability Database; KEV = CISA Known Exploited Vulnerabilities catalog.
Intelligence timeline
Developments from the last 30 days, newest first.
- CVSS scoredUpdateKEV
CVE-2011-1823 scored CVSS 7.8: Android Android OS, Android OS Privilege Escalation Vulnerability
CISA lists this as exploited in the wild. Unpatched Android OS systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
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Coverage
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