CVEvulnerability

CVE-2011-1823

7.8 HIGH Known exploited Published 2011-06-09 Modified 2026-06-16 Official page ↗

CISA Known Exploited Vulnerability

Android OS Privilege Escalation Vulnerability — Android Android OS

The vold volume manager daemon in Android kernel trusts messages from a PF_NETLINK socket, which allows an attacker to execute code and gain root privileges. This vulnerability is associated with GingerBreak and Exploit.AndroidOS.Lotoor.

Added to KEV: 2022-09-08
Remediation due: 2022-09-29
Ransomware use: Unknown
Required action: Apply updates per vendor instructions.
Notes: https://android.googlesource.com/platform/system/vold/+/c51920c82463b240e2be0430849837d6fdc5352e; https://nvd.nist.gov/vuln/detail/CVE-2011-1823

Status: Analyzed
Published: 2011-06-09
Last modified: 2026-06-16
Assigner: [email protected]
CVSS 3.1 ([email protected]): 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0): 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected]): 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses: CWE-190

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.

Affected configurations

• google android (>= 2.0 < 2.3.4) • google android 3.0

Weakness · CWE (1)

CWE-190 Integer Overflow or Wraparound weakness

References