Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2015-9138

Severity CVSS v4.0:
Pending analysis
Type:
CWE-119 Buffer Errors
Publication date:
18/04/2018
Last modified:
09/05/2018

Description

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile, Snapdragon Mobile, Snapdragon Wear, and Small Cell SoC FSM9055, IPQ4019, MDM9206, MDM9607, MDM9625, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 425, SD 430, SD 450, SD 600, SD 615/16/SD 415, SD 617, SD 625, SD 650/52, SD 800, SD 808, SD 810, SD 820, SD 820A, SD 835, SD 845, SD 850, and SDX20, when an RSA encryption operation is called, the ce_util_to_unsigned_bin is invoked to convert the input buffer to unsigned binary. The ce_util_to_unsigned_bin function, instead of operating on the size of the unsigned character buffer that is passed, operates on the address - i.e. operates on "c" instead of "*c". Decrementing the address to check if it is less than zero means that the operation will always pass, since a pointer will never be less than zero, and may result in a buffer overflow.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
9.80
Severity 3.x
CRITICAL
Vector 2.0
AV:N/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 10.00 HIGH
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
10.00
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:qualcomm:mdm9206_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9206:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9607_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9607:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fsm9055_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:fsm9055:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9625_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9625:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9635m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9635m:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9640_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9640:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9645_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9645:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9650_firmware:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools