SB2021060727 - Multiple vulnerabilities in Qualcomm chipsets

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2021060727

SB2021060727 - Multiple vulnerabilities in Qualcomm chipsets

Published: June 7, 2021

Security Bulletin ID SB2021060727
Severity
High
Patch available
YES
Number of vulnerabilities 9
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 22% Medium 22% Low 56%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 9 secuirty vulnerabilities.


1) Buffer overflow (CVE-ID: CVE-2020-11292)

The vulnerability allows a local application to elevate privileges on the system.

The vulnerability exists due to a boundary error when validating parameters in QMI Voice API within the Multi-Mode Call Processor subsystem. A local application can trigger memory corruption and execute arbitrary code with elevated privileges.



2) Use of Out-of-range Pointer Offset (CVE-ID: CVE-2020-11304)

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a boundary error in the Content Protection subsystem in DRM. A local application can trigger an out-of-bounds read and escalate privileges on the system.


3) Reachable Assertion (CVE-ID: CVE-2021-1937)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion when processing WLAN messages. A remote attacker can send a specially crafted packet to the system and perform a denial of service (DoS) attack.


4) Improper Validation of Array Index (CVE-ID: CVE-2020-11176)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary error when processing server certificate from IPSec server. A remote attacker can supply a certificate with a specially crafted subject alternative name API, trigger heap-based buffer overflow and execute arbitrary code on the system.


5) Improper Validation of Array Index (CVE-ID: CVE-2020-11291)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists i the Data Modem subsystem due to a boundary error when processing ikev2 parameters for delete payloads received during informational exchange from the ePDG server. A remote attacker can trigger memory corruption and execute arbitrary code on the system.


6) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2020-11298)

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a race condition in QTEE subsystem. While waiting for a response to a callback or listener request, non-secure clients can change permissions to shared memory buffers used by HLOS Invoke Call to secure kernel. A local application can trigger Time-of-check Time-of-use (TOCTOU) race condition and escalate privileges on the system.

7) Integer overflow (CVE-ID: CVE-2020-11306)

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to integer overflow in the QTEE subsystem within RPMB counter. A local application can trigger an integer overflow and escalate privileges on the system.

8) Use-after-free (CVE-ID: CVE-2021-1900)

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a boundary error in the Display subsystem. A local application can trigger a race condition while creating an external display and escalate privileges on the system.

9) Buffer overflow (CVE-ID: CVE-2020-11267)

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a boundary error in the HLOS subsystem. Stack out-of-bounds write occurs while setting up a cipher device if the provided IV length exceeds the max limit value. A local application can trigger an out-of-bounds read and escalate privileges on the system.

Remediation

Install update from vendor's website.

References