CVE-2022-21773: Use After Free
First published: Wed Jul 06 2022(Updated: )
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: ALPS06641388; Issue ID: ALPS06641388.
Credit: security@mediatek.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Android | =11.0 | |
| Android | =12.0 | |
| Mediatek MT6580 | ||
| MediaTek MT6735 | ||
| MediaTek MT6737 | ||
| MediaTek MT6739 | ||
| MediaTek MT6750 | ||
| MediaTek MT6750 | ||
| MediaTek MT6755 | ||
| MediaTek MT6755 | ||
| MediaTek MT6761 | ||
| MediaTek MT6762M | ||
| MediaTek MT6763 | ||
| MediaTek MT6765 | ||
| MediaTek MT6768 | ||
| MediaTek MT6769 | ||
| MediaTek MT6771 | ||
| MediaTek MT6779 | ||
| MediaTek MT6781 | ||
| MediaTek MT6785T | ||
| MediaTek M6789 | ||
| MediaTek MT6795 | ||
| MediaTek MT6797 | ||
| MediaTek MT6833 | ||
| MediaTek MT6853 | ||
| MediaTek MT6853T | ||
| MediaTek MT6873 | ||
| MediaTek MT6875T | ||
| MediaTek MT6877 | ||
| MediaTek MT6879 | ||
| MediaTek MT6883 | ||
| MediaTek MT6885 | ||
| MediaTek MT6889 | ||
| MediaTek MT6890 | ||
| MediaTek MT6891 | ||
| MediaTek MT6893 |
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Frequently Asked Questions
What is CVE-2022-21773?
CVE-2022-21773 is a vulnerability in TEEI driver that could lead to local escalation of privilege with system execution privileges.
Is user interaction needed for exploitation of CVE-2022-21773?
No, user interaction is not needed for exploitation of CVE-2022-21773.
What is the severity of CVE-2022-21773?
The severity of CVE-2022-21773 is medium with a CVSS v3 base score of 6.7.
How can I patch CVE-2022-21773?
You can patch CVE-2022-21773 by applying Patch ID ALPS06641388.
Where can I find more information about CVE-2022-21773?
You can find more information about CVE-2022-21773 at the MediaTek Product Security Bulletin for July 2022.
- agent/type
- agent/author
- agent/severity
- agent/references
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- agent/weakness
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/google
- canonical/android
- version/android/11.0
- version/android/12.0
- vendor/mediatek
- canonical/mediatek mt6580
- canonical/mediatek mt6735
- canonical/mediatek mt6737
- canonical/mediatek mt6739
- canonical/mediatek mt6750
- canonical/mediatek mt6755
- canonical/mediatek mt6761
- canonical/mediatek mt6762m
- canonical/mediatek mt6763
- canonical/mediatek mt6765
- canonical/mediatek mt6768
- canonical/mediatek mt6769
- canonical/mediatek mt6771
- canonical/mediatek mt6779
- canonical/mediatek mt6781
- canonical/mediatek mt6785t
- canonical/mediatek m6789
- canonical/mediatek mt6795
- canonical/mediatek mt6797
- canonical/mediatek mt6833
- canonical/mediatek mt6853
- canonical/mediatek mt6853t
- canonical/mediatek mt6873
- canonical/mediatek mt6875t
- canonical/mediatek mt6877
- canonical/mediatek mt6879
- canonical/mediatek mt6883
- canonical/mediatek mt6885
- canonical/mediatek mt6889
- canonical/mediatek mt6890
- canonical/mediatek mt6891
- canonical/mediatek mt6893