Out-of-Bounds Write in CDMA PPP: Remote Privilege Escalation
CVE-2023-20819 Published on October 2, 2023

In CDMA PPP protocol, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privilege needed. User interaction is not needed for exploitation. Patch ID: MOLY01068234; Issue ID: ALPS08010003.

NVD

Vulnerability Analysis

CVE-2023-20819 can be exploited with local system access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
HIGH
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is a Memory Corruption Vulnerability?

The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.

CVE-2023-20819 has been classified to as a Memory Corruption vulnerability or weakness.


Products Associated with CVE-2023-20819

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Affected Versions

MediaTek, Inc. MT2731, MT6570, MT6580, MT6595, MT6732, MT6735, MT6737, MT6737M, MT6738, MT6739, MT6750, MT6750S, MT6752, MT6753, MT6755, MT6757, MT6758, MT6761, MT6762, MT6762D, MT6762M, MT6763, MT6765, MT6765T, MT6767, MT6768, MT6769, MT6769T, MT6769Z, MT6771, MT6775, MT6779, MT6781, MT6783, MT6785, MT6785T, MT6789, MT6795, MT6797, MT6799, MT6813, MT6815, MT6833, MT6835, MT6853, MT6855, MT6873, MT6875, MT6875T, MT6877, MT6878, MT6879, MT6883, MT6885, MT6886, MT6889, MT6891, MT6893, MT6895, MT6895T, MT6896, MT6897, MT6983, MT6985, MT6989, MT8666, MT8666A, MT8667, MT8673, MT8675, MT8765, MT8766, MT8766Z, MT8768, MT8768A, MT8768B, MT8768T, MT8768Z, MT8781, MT8786, MT8788, MT8788T, MT8788X, MT8788Z, MT8791, MT8791T, MT8797, MT8798: mediatek mt2731: mediatek mt6570: mediatek mt6580: mediatek mt6595: mediatek mt6732: mediatek mt6735: mediatek mt6737: mediatek mt6737m: mediatek mt6738: mediatek mt6739: mediatek mt6750: mediatek mt6750s: mediatek mt6752: mediatek mt6753: mediatek mt6755: mediatek mt6757: mediatek mt6758: mediatek mt6761: mediatek mt6762: mediatek mt6762d: mediatek mt6762m: mediatek mt6763: mediatek mt6765: mediatek mt6765t: mediatek mt6767: mediatek mt6768: mediatek mt6769: mediatek mt6769t: mediatek mt6769z: mediatek mt6771: mediatek mt6775: mediatek mt6779: mediatek mt6781: mediatek mt6783: mediatek mt6785: mediatek mt6785t: mediatek mt6789: mediatek mt6795: mediatek mt6797: mediatek mt6799: mediatek mt6813: mediatek mt6815: mediatek mt6833: mediatek mt6835: mediatek mt6853: mediatek mt6855: mediatek mt6873: mediatek mt6875: mediatek mt6875t: mediatek mt6877: mediatek mt6878: mediatek mt6879: mediatek mt6883: mediatek mt6885: mediatek mt6886: mediatek mt6889: mediatek mt6891: mediatek mt6893: mediatek mt6895: mediatek mt6895t: mediatek mt6896: mediatek mt6897: mediatek mt6983: mediatek mt6985: mediatek mt6989: mediatek mt8666: mediatek mt8666a: mediatek mt8667: mediatek mt8673: mediatek mt8675: mediatek mt8765: mediatek mt8766: mediatek mt8766z: mediatek mt8768: mediatek mt8768a: mediatek mt8768b: mediatek mt8768t: mediatek mt8768z: mediatek mt8781: mediatek mt8786: mediatek mt8788: mediatek mt8788t: mediatek mt8788x: mediatek mt8788z: mediatek mt8791: mediatek mt8791t: mediatek mt8797: mediatek mt8798:

Exploit Probability

EPSS
1.54%
Percentile
81.16%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.