CVE-2023-4273
MediumCVSS 6.0Exploitation Probability (EPSS)
Low risk47th percentile - higher than 47% of all known CVEs
Summary
A flaw was found in the exFAT driver of the Linux kernel related to the file name reconstruction function. This vulnerability allows a local privileged attacker to overflow the kernel stack, potentially leading to privilege escalation.
Risk Assessment
A local attacker with privileges could exploit this vulnerability to overflow the kernel stack, creating a risk of privilege escalation and potential system takeover.
Recommendation
It is recommended to update the Linux kernel to the latest version to mitigate this vulnerability and to monitor systems for potential exploitation attempts.
Original NVD description (English source)
A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could use this flaw to overflow the kernel stack.