Dell Windows driver imgsys_cmdq LPE via OOB read
CVE-2023-20848 Published on September 4, 2023
In imgsys_cmdq, there is a possible out of bounds read due to a missing valid range checking. This could lead to local escalation of privilege with System execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS07340433; Issue ID: ALPS07340433.
Vulnerability Analysis
CVE-2023-20848 is exploitable with local system access, requires user interaction and 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.
Weakness Type
Out-of-bounds Read
The software reads data past the end, or before the beginning, of the intended buffer. Typically, this can allow attackers to read sensitive information from other memory locations or cause a crash. A crash can occur when the code reads a variable amount of data and assumes that a sentinel exists to stop the read operation, such as a NUL in a string. The expected sentinel might not be located in the out-of-bounds memory, causing excessive data to be read, leading to a segmentation fault or a buffer overflow. 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 read operation then produces undefined or unexpected results.
Products Associated with CVE-2023-20848
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Affected Versions
MediaTek, Inc. MT2713, MT6895, MT6897, MT6983, MT8188, MT8195, MT8395, MT8781:- Version Android 11.0, 12.0 / Linux 6.1 / IOT-v23.0 / Yocto 4.0 is affected.
- Version Android 11.0 is affected.
- Version Android 12.0 is affected.
- Version Linux 6.1 is affected.
- Version IOT-v23.0 is affected.
- Version Yocto 4.0 is affected.
Exploit Probability
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.