Local PrivEsc via OOB Write in ALPS nvram
CVE-2023-20821 Published on September 4, 2023

In nvram, 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. Patch ID: ALPS07937113; Issue ID: ALPS07937113.

NVD

Vulnerability Analysis

CVE-2023-20821 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

Products Associated with CVE-2023-20821

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2023-20821 are published in these products:

Linux Foundation Yocto

Rdkcentral Rdk B

Google Android

Openwrt

Affected Versions

MediaTek, Inc. MT2713, MT2735, MT6833, MT6835, MT6853, MT6855, MT6873, MT6875, MT6877, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6980, MT6983, MT6985, MT6990, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8185, MT8188, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8395, MT8666, MT8673, MT8675, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797:

Version Android 11.0, 12.0, 13.0 / OpenWrt 1907, 2102 / Yocto 2.6 / RDK-B 22Q3 is affected.

mediatek mt2713:

Before and including * is affected.

mediatek mt2735:

Before and including * is affected.

mediatek mt6833:

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mediatek mt6835:

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mediatek mt6853:

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mediatek mt6855:

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mediatek mt6873:

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mediatek mt6875:

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mediatek mt6877:

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mediatek mt6879:

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mediatek mt6880:

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mediatek mt6883:

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mediatek mt6885:

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mediatek mt6886:

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mediatek mt6889:

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mediatek mt6890:

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mediatek mt6891:

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mediatek mt6893:

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mediatek mt6895:

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mediatek mt6980:

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mediatek mt6983:

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mediatek mt6985:

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mediatek mt6990:

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mediatek mt8167:

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mediatek mt8167s:

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mediatek mt8168:

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mediatek mt8173:

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mediatek mt8175:

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mediatek mt8185:

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mediatek mt8188:

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mediatek mt8195:

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mediatek mt8321:

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mediatek mt8362a:

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mediatek mt8365:

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mediatek mt8385:

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mediatek mt8395:

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mediatek mt8666:

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mediatek mt8673:

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mediatek mt8675:

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mediatek mt8765:

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mediatek mt8766:

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mediatek mt8768:

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mediatek mt8781:

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mediatek mt8786:

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mediatek mt8788:

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mediatek mt8789:

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mediatek mt8791:

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mediatek mt8791t:

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mediatek mt8797:

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google android:

Version 12.0 is affected.
Version 13.0 is affected.

Exploit Probability

EPSS

0.01%

Percentile

1.14%

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.

Local PrivEsc via OOB Write in ALPS nvramCVE-2023-20821 Published on September 4, 2023

Vulnerability Analysis

Products Associated with CVE-2023-20821

Affected Versions

Exploit Probability

Local PrivEsc via OOB Write in ALPS nvram
CVE-2023-20821 Published on September 4, 2023