Exynos Baseband OOB Heap Write Allows Remote Code Exec
CVE-2023-21517 Published on June 28, 2023
Heap out-of-bound write vulnerability in Exynos baseband prior to SMR Jun-2023 Release 1 allows remote attacker to execute arbitrary code.
Vulnerability Analysis
Weakness Type
What is a Classic Buffer Overflow Vulnerability?
The program copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. A buffer overflow condition exists when a program attempts to put more data in a buffer than it can hold, or when a program attempts to put data in a memory area outside of the boundaries of a buffer. The simplest type of error, and the most common cause of buffer overflows, is the "classic" case in which the program copies the buffer without restricting how much is copied. Other variants exist, but the existence of a classic overflow strongly suggests that the programmer is not considering even the most basic of security protections.
CVE-2023-21517 has been classified to as a Classic Buffer Overflow vulnerability or weakness.
Products Associated with CVE-2023-21517
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Affected Versions
Samsung Mobile Devices:- Version Select devices using Exynos CP chipsets and below SMR Jun-2023 Release 1 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.