SB2021090221 - Multiple vulnerabilities in MediaTek chipsets
Published: September 2, 2021 Updated: March 7, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 15 secuirty vulnerabilities.
1) Information Exposure (CVE-ID: CVE-2021-0423)
The vulnerability allows a local application to gain access to sensitive information.
The vulnerability exists due to uninitialized data within memory management driver. A local application can gain access to sensitive information.
2) Improper Check or Handling of Exceptional Conditions (CVE-ID: CVE-2021-0660)
The vulnerability allows a local privileged application to gain access to sensitive information.
The vulnerability exists due to incorrect error handling within ccu. A local privileged application can gain access to sensitive information.
3) Use After Free (CVE-ID: CVE-2021-0612)
The vulnerability allows a local privileged application to execute arbitrary code.
The vulnerability exists due to a use after free within m4u. A local privileged application can execute arbitrary code.
4) Use After Free (CVE-ID: CVE-2021-0611)
The vulnerability allows a local privileged application to execute arbitrary code.
The vulnerability exists due to a use after free within m4u. A local privileged application can execute arbitrary code.
5) Integer overflow (CVE-ID: CVE-2021-0610)
The vulnerability allows a local application to execute arbitrary code.
The vulnerability exists due to an integer overflow within memory management driver. A local application can execute arbitrary code.
6) Information Exposure (CVE-ID: CVE-2021-0425)
The vulnerability allows a local application to gain access to sensitive information.
The vulnerability exists due to improper input validation within memory management driver. A local application can gain access to sensitive information.
7) Resource exhaustion (CVE-ID: CVE-2021-0424)
The vulnerability allows a local application to perform service disruption.
The vulnerability exists due to a missing bounds check within memory management driver. A local application can perform service disruption.
8) Resource exhaustion (CVE-ID: CVE-2021-0422)
The vulnerability allows a local application to perform service disruption.
The vulnerability exists due to a missing bounds check within memory management driver. A local application can perform service disruption.
9) Information Exposure (CVE-ID: CVE-2021-0681)
The vulnerability allows a local application to gain access to sensitive information.
The vulnerability exists due to a missing permission check within system properties. A local application can gain access to sensitive information.
10) Out-of-bounds read (CVE-ID: CVE-2021-0421)
The vulnerability allows a local application to gain access to sensitive information.
The vulnerability exists due to a missing bounds check within memory management driver. A local application can gain access to sensitive information.
11) Heap-based Buffer Overflow (CVE-ID: CVE-2021-32487)
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to a heap buffer overflow within Modem 2G RRM. A remote attacker can trick the victim to open a specially crafted file and execute arbitrary code.
12) Heap-based Buffer Overflow (CVE-ID: CVE-2021-32486)
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to a heap buffer overflow within Modem 2G RRM. A remote attacker can trick the victim to open a specially crafted file and execute arbitrary code.
13) Heap-based Buffer Overflow (CVE-ID: CVE-2021-32485)
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to a heap buffer overflow within Modem 2G RRM. A remote attacker can trick the victim to open a specially crafted file and execute arbitrary code.
14) Heap-based Buffer Overflow (CVE-ID: CVE-2021-32484)
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to a heap buffer overflow within Modem 2G RRM. A remote attacker can trick the victim to open a specially crafted file and execute arbitrary code.
15) Information Exposure (CVE-ID: CVE-2021-0680)
The vulnerability allows a local application to gain access to sensitive information.
The vulnerability exists due to a missing permission check within system properties. A local application can gain access to sensitive information.
Remediation
Install update from vendor's website.