Out-of-bounds write in MediaTek products - CVE-2023-20819

Vulnerability identifier: #VU81347

CSH Severity: Low

CVSS v4: 8.5 [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]

CVE-ID: CVE-2023-20819

CWE-ID: CWE-787

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local application to execute arbitrary code.

The vulnerability exists due to a missing bounds check within CDMA PPP protocol. A local application can execute arbitrary code.

MT6889
MT6893
MT6891
MT6885
MT6883
MT6877
MT6875
MT6873
MT8797
MT6853
MT6785
MT6781
MT6779
MT8666
MT6989
MT6985
MT6983
MT6897
MT6896
MT6895T
MT6895
MT8666A
MT6886
MT6879
MT6878
MT6875T
MT6855
MT8768Z
MT8798
MT8791T
MT8791
MT8788Z
MT8788X
MT8788T
MT8788
MT8786
MT8781
MT8768T
MT8768B
MT8768A
MT8768
MT8766Z
MT8766
MT8765
MT8675
MT8673
MT8667
MT6750S
MT6763
MT6762M
MT6762D
MT6762
MT6761
MT6758
MT6757
MT6755
MT6753
MT6752
MT6765
MT6750
MT6739
MT6738
MT6737M
MT6737
MT6735
MT6732
MT6595
MT6580
MT6570
MT6783
MT6835
MT6833
MT6815
MT6813
MT6799
MT6797
MT6795
MT6789
MT6785T
MT2731
MT6775
MT6771
MT6769Z
MT6769T
MT6769
MT6768
MT6767
MT6765T
Google Android

Install security update from vendor's website.

Google Android - addressed in versions 11 2023-10-05, 12L 2023-10-05, 12 2023-10-05, 13 2023-10-05

• https://corp.mediatek.com/product-security-bulletin/October-2023

• Multiple vulnerabilities in MediaTek chipsets
• Multiple vulnerabilities in Google Android