6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
41.6%
Android OS kernels running on certain Qualcomm devices contain multiple vulnerabilities which could allow an attacker to cause privilege escalation or Denial of Service (DoS).
The Qualcomm Innovation Center, Inc. advisory states:
_Summary:
A locally installed application can cause privilege escalation or Denial of Service (DoS) by passing a specially crafted input to diagchar_ioctl call of Diagnostics (DIAG) kernel mode driver for Android. The involved CVE IDs are CVE-2012-4220 (untrusted pointer dereference), CVE-2012-4221 (integer overflow). A patch which can be applied to Gingerbread, Ice Cream Sandwich and Jelly Bean source is made available from the location below.
A locally installed application can cause DoS by passing a specially crafted input to kgsl_ioctl call of Graphics KGSL kernel mode driver for Android. The involved CVE ID is CVE-2012-4222 (null pointer dereference). A patch which can be applied to Gingerbread, Ice Cream Sandwich and Jelly Bean source is made available from the location below.
Affected version:
All Android releases from CAF prior to November 15, 2012 using Linux kernel from the following heads: msm-3.4, msm-3.0, jb_, ics_, gingerbread_*_
Note: Permission changes in ICS and Jelly Bean that restrict /dev/diag access to qcom_diag group mitigate CVE-2012-4220 and CVE-2012-4221.
By convincing a user to install a specially crafted android application, a remote attacker may be able to cause a privilege escalation or Denial of Service (DoS) allowing them to gain control of the affected device.
Update
The vendor states that these vulnerabilities have been addressed in PATCH_17010_jweEF843feG. Users are advised to apply the patch to affected devices. Fix for CVE-2012-4220 and CVE-2012-4221 in msm-3.4 can be found here. Fix for CVE-2012-4222 in msm-3.4 can be found here.
702452
Filter by status: All Affected Not Affected Unknown
Filter by content: __ Additional information available
__ Sort by: Status Alphabetical
Expand all
Javascript is disabled. Click here to view vendors.
Notified: November 01, 2012 Updated: November 30, 2012
Affected
We have not received a statement from the vendor.
We are not aware of further vendor information regarding this vulnerability.
Group | Score | Vector |
---|---|---|
Base | 6.6 | AV:L/AC:M/Au:S/C:C/I:C/A:C |
Temporal | 5.2 | E:POC/RL:OF/RC:C |
Environmental | 3.9 | CDP:ND/TD:M/CR:ND/IR:ND/AR:ND |
Thanks to [email protected] for reporting this vulnerability.
This document was written by Michael Orlando.
CVE IDs: | CVE-2012-4220, CVE-2012-4221, CVE-2012-4222 |
---|---|
Date Public: | 2012-11-15 Date First Published: |