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…
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Android OS Privilege Escalation Vulnerability.
- Added
- 8 Sept 2022
- Fix due (US federal)
- 29 Sept 2022
- Used by ransomware
- Not known
Apply updates per vendor instructions.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: it is being exploited.
Timeline
ID reserved
By mitre
- 50 days later
· 50 days later
Published
- 11 years later
· 11 years later
Added to CISA KEV
Known exploited in the wild
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 41.4% · top 1.3% of all CVEs (8 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
n/a
- affected n/a
References (10)
- http://android.git.kernel.org/?p=platform/system/netd.git%3Ba=commit%3Bh=79b579c92afc08ab12c0a5788d61f2dd2934836f (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://android.git.kernel.org/?p=platform/system/core.git%3Ba=commit%3Bh=b620a0b1c7ae486e979826200e8e441605b0a5d6 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://c-skills.blogspot.com/2011/04/yummy-yummy-gingerbreak.html (opens in a new tab)x_refsource_MISCx_transferred
- http://androidcommunity.com/gingerbreak-root-for-gingerbread-app-20110421/ (opens in a new tab)x_refsource_MISCx_transferred
- http://android.git.kernel.org/?p=platform/system/vold.git%3Ba=commit%3Bh=c51920c82463b240e2be0430849837d6fdc5352e (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://xorl.wordpress.com/2011/04/28/android-vold-mpartminors-signedness-issue/ (opens in a new tab)x_refsource_MISCx_transferred
- android-vold-priv-escalation(67977) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://www.androidpolice.com/2011/05/03/google-patches-gingerbreak-exploit-but-dont-worry-we-still-have-root-for-now/ (opens in a new tab)x_refsource_MISCx_transferred
- http://forum.xda-developers.com/showthread.php?t=1044765 (opens in a new tab)x_refsource_MISCx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-1823 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-1823)Record last updated .