SB2021060727 - Multiple vulnerabilities in Qualcomm chipsets

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Main Vulnerability Database SB2021060727

SB2021060727 - Multiple vulnerabilities in Qualcomm chipsets

Published: June 7, 2021

Security Bulletin ID SB2021060727
CSH 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 vulnerabilities.


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

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear


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)

CWE-ID: CWE-823 - Use of Out-of-range Pointer Offset

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


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)

CWE-ID: CWE-617 - Reachable Assertion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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)

CWE-ID: CWE-129 - Improper Validation of Array Index

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


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)

CWE-ID: CWE-129 - Improper Validation of Array Index

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


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)

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


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)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


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)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


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