SB2021080535 - Multiple vulnerabilities in MediaTek chipsets

Description

This security bulletin contains information about 19 vulnerabilities.

1) Information Exposure (CVE-ID: CVE-2021-0415)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

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

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to a missing permission check within memory management driver. A local application can gain access to sensitive information.

2) Improper Input Validation (CVE-ID: CVE-2021-0628)

CWE-ID: CWE-20 - Improper input validation

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

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to improper input validation within OMA DRM. A local privileged application can execute arbitrary code.

3) Integer overflow (CVE-ID: CVE-2021-0627)

CWE-ID: CWE-190 - Integer overflow

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

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to an integer overflow within OMA DRM. A local privileged application can execute arbitrary code.

4) Out-of-bounds write (CVE-ID: CVE-2021-0626)

CWE-ID: CWE-787 - Out-of-bounds write

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

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to a missing bounds check within ged. A local privileged application can execute arbitrary code.

5) Resource exhaustion (CVE-ID: CVE-2021-0420)

CWE-ID: CWE-400 - Resource exhaustion

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

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.

6) Resource exhaustion (CVE-ID: CVE-2021-0419)

CWE-ID: CWE-400 - Resource exhaustion

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

The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to improper input validation within memory management driver. A local application can perform service disruption.

7) Resource exhaustion (CVE-ID: CVE-2021-0418)

CWE-ID: CWE-400 - Resource exhaustion

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

The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to improper input validation within memory management driver. A local application can perform service disruption.

8) Use of Insufficiently Random Values (CVE-ID: CVE-2021-0417)

CWE-ID: CWE-330 - Use of Insufficiently Random Values

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

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.

9) Improper Input Validation (CVE-ID: CVE-2021-0416)

CWE-ID: CWE-20 - Improper input validation

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

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.

10) Improper Check or Handling of Exceptional Conditions (CVE-ID: CVE-2021-0408)

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

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

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to an incorrect bounds check within asf extractor. A local application can gain access to sensitive information.

11) Improper Check or Handling of Exceptional Conditions (CVE-ID: CVE-2021-0573)

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

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 execute arbitrary code.

The vulnerability exists due to a missing bounds check within asf extractor. A local application can execute arbitrary code.

12) Write-what-where Condition (CVE-ID: CVE-2021-0407)

CWE-ID: CWE-123 - Write-what-where Condition

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

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to an incorrect bounds check within clk driver. A local privileged application can execute arbitrary code.

13) Out-of-bounds read (CVE-ID: CVE-2021-0582)

CWE-ID: CWE-125 - Out-of-bounds read

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

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to a missing bounds check within wifi driver. A local application can gain access to sensitive information.

14) Out-of-bounds read (CVE-ID: CVE-2021-0581)

CWE-ID: CWE-125 - Out-of-bounds read

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

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to a missing bounds check within wifi driver. A local application can gain access to sensitive information.

15) Integer underflow (CVE-ID: CVE-2021-0580)

CWE-ID: CWE-191 - Integer underflow

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

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to a missing bounds check within wifi driver. A local application can gain access to sensitive information.

16) Buffer over-read (CVE-ID: CVE-2021-0579)

CWE-ID: CWE-126 - Buffer over-read

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

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to a missing bounds check within wifi driver. A local application can gain access to sensitive information.

17) Out-of-bounds read (CVE-ID: CVE-2021-0578)

CWE-ID: CWE-125 - Out-of-bounds read

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

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to a missing bounds check within wifi driver. A local application can gain access to sensitive information.

18) Heap-based Buffer Overflow (CVE-ID: CVE-2021-0576)

CWE-ID: CWE-122 - Heap-based Buffer 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 execute arbitrary code.

The vulnerability exists due to a missing bounds check within flv extractor. A local application can execute arbitrary code.

19) Out-of-bounds write (CVE-ID: CVE-2021-0574)

CWE-ID: CWE-787 - Out-of-bounds write

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 execute arbitrary code.

The vulnerability exists due to a missing bounds check within asf extractor. A local application can execute arbitrary code.

Remediation

Install update from vendor's website.

References

• https://corp.mediatek.com/product-security-bulletin/August-2021