Headline
CVE-2021-0619: November 2021
In ape extractor, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS05561395; Issue ID: ALPS05561395.
November 2021 Product Security Bulletin
Published November 11, 2021
The MediaTek Product Security Bulletin contains details of security vulnerabilities affecting MediaTek Smartphone, Tablet, AIoT, Smart display and TV chipsets. Device OEMs have been notified of all the issues and the corresponding security patches for at least two months before publication.
The severity of the identified vulnerabilities was conducted based on the Common Vulnerability Scoring System version 3.1 (CVSS v3.1).
****Summary****
Severity
CVEs
High
CVE-2021-0672
Medium
CVE-2021-0619, CVE-2021-0620, CVE-2021-0621, CVE-2021-0622, CVE-2021-0623, CVE-2021-0624, CVE-2021-0629, CVE-2021-0655, CVE-2021-0656, CVE-2021-0657, CVE-2021-0658, CVE-2021-0659, CVE-2021-0664, CVE-2021-0665, CVE-2021-0666, CVE-2021-0667, CVE-2021-0668, CVE-2021-0669, CVE-2021-0670, CVE-2021-0671
****Details****
CVE
CVE-2021-0672
Title
Exposure of sensitive information to an unauthorized actor in Browser app
Severity
High
Vulnerability Type
ID
CWE
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Description
In Browser app, there is a possible information disclosure due to a missing permission check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6731, MT6732, MT6735, MT6737, MT6739, MT6750, MT6750S, MT6752, MT6753, MT6755, MT6755S, MT6757, MT6757C, MT6757CD, MT6757CH, MT6758, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6795, MT6797, MT6799, MT6833, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8163, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8183, MT8185, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8735A, MT8735B, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797
Affected Software Versions
Android 8.1, 9.0, 10.0, 11.0
CVE
CVE-2021-0619
Title
Out-of-bounds read in ape extractor
Severity
Medium
Vulnerability Type
ID
CWE
CWE-125 Out-of-bounds Read
Description
In ape extractor, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6739, MT6758, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6785, MT6795, MT6797, MT6799, MT6833, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8163, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8183, MT8185, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0620
Title
Out-of-bounds read in asf extractor
Severity
Medium
Vulnerability Type
ID
CWE
CWE-125 Out-of-bounds Read
Description
In asf extractor, there is a possible out of bounds read due to a heap buffer overflow. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT5522, MT5527, MT5597, MT5598, MT5599, MT6580, MT6735, MT6737, MT6739, MT6750S, MT6753, MT6755S, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6771, MT6779, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6877, MT6885, MT6889, MT6893, MT8163, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8183, MT8185, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797, MT9256, MT9285, MT9286, MT9288, MT9629, MT9631, MT9632, MT9636, MT9638, MT9639, MT9650, MT9652, MT9669, MT9670, MT9675, MT9685, MT9686, MT9688, MT9931, MT9950, MT9970, MT9980, MT9981
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0621
Title
Out-of-bounds read in asf extractor
Severity
Medium
Vulnerability Type
ID
CWE
CWE-125 Out-of-bounds Read
Description
In asf extractor, there is a possible out of bounds read due to an integer overflow. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT5522, MT5527, MT5597, MT5598, MT5599, MT6580, MT6735, MT6737, MT6739, MT6750S, MT6753, MT6755S, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6771, MT6779, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6877, MT6885, MT6889, MT6893, MT8163, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8183, MT8184, MT8185, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797, MT9256, MT9285, MT9286, MT9288, MT9629, MT9631, MT9632, MT9636, MT9638, MT9639, MT9650, MT9652, MT9669, MT9670, MT9675, MT9685, MT9686, MT9688, MT9931, MT9950, MT9970, MT9980, MT9981
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0622
Title
Out-of-bounds read in asf extractor
Severity
Medium
Vulnerability Type
ID
CWE
CWE-125 Out-of-bounds Read
Description
In asf extractor, there is a possible out of bounds read due to a heap buffer overflow. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT5522, MT5527, MT5597, MT5598, MT5599, MT6580, MT6735, MT6737, MT6739, MT6750S, MT6753, MT6755S, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6771, MT6779, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6877, MT6885, MT6889, MT6893, MT8163, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8183, MT8185, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797, MT9256, MT9285, MT9286, MT9288, MT9629, MT9631, MT9632, MT9636, MT9638, MT9639, MT9650, MT9652, MT9669, MT9670, MT9675, MT9685, MT9686, MT9688, MT9931, MT9950, MT9970, MT9980, MT9981
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0623
Title
Out-of-bounds read in asf extractor
Severity
Medium
Vulnerability Type
ID
CWE
CWE-125 Out-of-bounds Read
Description
In asf extractor, there is a possible out of bounds read due to an integer overflow. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT5522, MT5527, MT5597, MT5598, MT5599, MT6580, MT6735, MT6737, MT6739, MT6750S, MT6753, MT6755S, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6771, MT6779, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6877, MT6885, MT6889, MT6893, MT8163, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8183, MT8185, MT8186, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797, MT9256, MT9285, MT9286, MT9288, MT9629, MT9631, MT9632, MT9636, MT9638, MT9639, MT9650, MT9652, MT9669, MT9670, MT9675, MT9685, MT9686, MT9688, MT9931, MT9950, MT9970, MT9980, MT9981
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0624
Title
Out-of-bounds read in flv extractor
Severity
Medium
Vulnerability Type
ID
CWE
CWE-125 Out-of-bounds Read
Description
In flv extractor, there is a possible out of bounds read due to a heap buffer overflow. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6580, MT6735, MT6737, MT6739, MT6750S, MT6753, MT6755S, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6771, MT6779, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6877, MT6885, MT6889, MT6893, MT8163, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8183, MT8185, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8735A, MT8735B, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0629
Title
Improper restriction of operations within the bounds of a memory buffer in mdlactl driver
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Description
In mdlactl driver, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6873, MT6875, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, MT8797, MT9636, MT9638, MT9639, MT9650, MT9652, MT9669, MT9686, MT9970, MT9980, MT9981
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0655
Title
Improper restriction of operations within the bounds of a memory buffer in mdlactl driver
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Description
In mdlactl driver, there is a possible memory corruption due to an incorrect bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6873, MT6875, MT6883, MT6885, MT6889, MT6891, MT6893
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0656
Title
Use after free in edma driver
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-416 Use After Free
Description
In edma driver, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6853, MT6853T, MT6873, MT6877, MT6883, MT6885, MT6889, MT6893, MT8195, MT8791, MT8797
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0657
Title
Stack-based buffer overflow in apusys
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-121 Stack-based Buffer Overflow
Description
In apusys, there is a possible out of bounds write due to a stack-based buffer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, MT8797
Affected Software Versions
Android 10.0
CVE
CVE-2021-0658
Title
Improper restriction of operations within the bounds of a memory buffer in apusys
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Description
In apusys, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, MT8797
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0659
Title
Out-of-bounds read in apusys
Severity
Medium
Vulnerability Type
ID
CWE
CWE-125 Out-of-bounds Read
Description
In apusys, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, MT8797
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0664
Title
Improper restriction of operations within the bounds of a memory buffer in ccu
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Description
In ccu, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6765, MT6768, MT6771, MT6779, MT6785, MT6833, MT6853, MT6873, MT6877, MT6885, MT6889, MT8183, MT8385, MT8768, MT8788
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0665
Title
Out-of-bounds read in apusys
Severity
Medium
Vulnerability Type
ID
CWE
CWE-125 Out-of-bounds Read
Description
In apusys, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, MT8797, MT9636, MT9638, MT9639, MT9650, MT9652, MT9669, MT9686, MT9970, MT9980, MT9981
Affected Software Versions
Android 10.0
CVE
CVE-2021-0666
Title
Out-of-bounds read in apusys
Severity
Medium
Vulnerability Type
ID
CWE
CWE-125 Out-of-bounds Read
Description
In apusys, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, MT8797, MT9636, MT9638, MT9639, MT9650, MT9652, MT9669, MT9686, MT9970, MT9980, MT9981
Affected Software Versions
Android 11.0
CVE
CVE-2021-0667
Title
Use after free in apusys
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-416 Use After Free
Description
In apusys, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT9636, MT9638, MT9639, MT9650, MT9652, MT9669, MT9686, MT9970, MT9980, MT9981
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0668
Title
Improper check or handling of exceptional conditions in apusys
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-703 Improper Check or Handling of Exceptional Conditions
Description
In apusys, there is a possible memory corruption due to incorrect error handling. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT9636, MT9638, MT9639, MT9650, MT9652, MT9669, MT9686, MT9970, MT9980, MT9981
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0669
Title
Use after free in apusys
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-416 Use After Free
Description
In apusys, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, MT8797, MT9636, MT9638, MT9639, MT9650, MT9652, MT9669, MT9686, MT9970, MT9980, MT9981
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0670
Title
Improper restriction of operations within the bounds of a memory buffer in apusys
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Description
In apusys, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, MT8797
Affected Software Versions
Android 10.0, 11.0
CVE
CVE-2021-0671
Title
Improper restriction of operations within the bounds of a memory buffer in apusys
Severity
Medium
Vulnerability Type
EoP
CWE
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Description
In apusys, there is a possible memory corruption due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Affected Chipsets
MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, MT8797
Affected Software Versions
Android 10.0
****Vulnerability Type Definition****
Abbreviation
Definition
RCE
Remote Code Execution
EoP
Elevation of Privilege
ID
Information Disclosure
DoS
Denial of Service
N/A
Classification not available
****Versions****
Version
Date
Description
1.0
November 11, 2021
Bulletin published.
****Notes****
Information above is generated only at the time of creation of this Security Bulletin. The list of affected chipsets could be not complete. For any further information, device OEMs can reach your MediaTek contact person if needed.
If you want to report a security vulnerability in MediaTek chipsets or products, please go to Report Security Vulnerability page on MediaTek website.