SB2021060801 - Multiple vulnerabilities in Google Android
Published: June 8, 2021 Updated: January 26, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 13 secuirty vulnerabilities.
1) 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.
2) 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.
3) 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.
4) 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.
5) 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.
6) 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.
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) Reachable Assertion (CVE-ID: CVE-2021-1925)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion in WLAN when handling group management action frame. A remote attacker can send specially crafted traffic to the system and perform a denial of service attack.
10) 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.
11) Cross-site scripting (CVE-ID: CVE-2021-0527)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in (keywords) searching parameter. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
12) Improper access control (CVE-ID: CVE-2020-26555)
The vulnerability allows a local attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions within the Bluetooth legacy BR/EDR PIN code pairing. An attacker with physical access can spoof the BD_ADDR of the peer device and complete pairing without knowledge of the PIN.
13) Security features bypass (CVE-ID: CVE-2020-26558)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to an impersonation in the Passkey Entry protocol flaw. A remote attacker on the local network can perform a man-in-the-middle (MITM) attack and impersonate the initiating device without any previous knowledge.
Note: This vulnerability affects the following specifications:
- BR/EDR Secure Simple Pairing in Bluetooth Core Specifications 2.1 through 5.2
- BR/EDR Secure Connections Pairing in Bluetooth Core Specifications 4.1 through 5.2
- LE Secure Connections Pairing in Bluetooth Core Specifications 4.2 through 5.2
Remediation
Install update from vendor's website.