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MediaTekCVE-2022-21774

HistoryJul 06, 2022 - 2:15 p.m.

CVE-2022-21774

2022-07-0614:15:17

CWE-362

MediaTek

web.nvd.nist.gov

cve-2022-21774

teei driver

use after free

race condition

local escalation of privilege

system execution privileges

patch id alps06641447

issue id alps06641447

nvd

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

Percentile

5.1%

JSON

In TEEI driver, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06641447; Issue ID: ALPS06641447.

Affected configurations

Nvd

Vulners

Node

googleandroidMatch11.0

googleandroidMatch12.0

AND

mediatekmt6761Match-

mediatekmt6765Match-

mediatekmt6768Match-

mediatekmt6771Match-

mediatekmt6779Match-

mediatekmt6781Match-

mediatekmt6785Match-

mediatekmt6833Match-

mediatekmt6853Match-

mediatekmt6875Match-

mediatekmt6877Match-

mediatekmt6879Match-

mediatekmt6885Match-

mediatekmt6893Match-

mediatekmt6895Match-

mediatekmt6983Match-

VendorProductVersionCPE
googleandroid11.0cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*
googleandroid12.0cpe:2.3:o:google:android:12.0:*:*:*:*:*:*:*
mediatekmt6761-cpe:2.3:h:mediatek:mt6761:-:*:*:*:*:*:*:*
mediatekmt6765-cpe:2.3:h:mediatek:mt6765:-:*:*:*:*:*:*:*
mediatekmt6768-cpe:2.3:h:mediatek:mt6768:-:*:*:*:*:*:*:*
mediatekmt6771-cpe:2.3:h:mediatek:mt6771:-:*:*:*:*:*:*:*
mediatekmt6779-cpe:2.3:h:mediatek:mt6779:-:*:*:*:*:*:*:*
mediatekmt6781-cpe:2.3:h:mediatek:mt6781:-:*:*:*:*:*:*:*
mediatekmt6785-cpe:2.3:h:mediatek:mt6785:-:*:*:*:*:*:*:*
mediatekmt6833-cpe:2.3:h:mediatek:mt6833:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
google	android	11.0	cpe:2.3:o:google:android:11.0:::::::*
google	android	12.0	cpe:2.3:o:google:android:12.0:::::::*
mediatek	mt6761	-	cpe:2.3:h:mediatek:mt6761:-:::::::*
mediatek	mt6765	-	cpe:2.3:h:mediatek:mt6765:-:::::::*
mediatek	mt6768	-	cpe:2.3:h:mediatek:mt6768:-:::::::*
mediatek	mt6771	-	cpe:2.3:h:mediatek:mt6771:-:::::::*
mediatek	mt6779	-	cpe:2.3:h:mediatek:mt6779:-:::::::*
mediatek	mt6781	-	cpe:2.3:h:mediatek:mt6781:-:::::::*
mediatek	mt6785	-	cpe:2.3:h:mediatek:mt6785:-:::::::*
mediatek	mt6833	-	cpe:2.3:h:mediatek:mt6833:-:::::::*

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CNA Affected

[
  {
    "product": "MT6761, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6875, MT6877, MT6879, MT6885, MT6893, MT6895, MT6983",
    "vendor": "MediaTek, Inc.",
    "versions": [
      {
        "status": "affected",
        "version": "Android 11.0, 12.0"
      }
    ]
  }
]

References

corp.mediatek.com/product-security-bulletin/July-2022

Social References

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

Percentile

5.1%

JSON

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