Linux Kernel Network Device Vulnerability and Information Leak

CVE-2023-53863

What is CVE-2023-53863?

An identified vulnerability in the Linux kernel pertains to improper handling of network device addresses during netlink FDB dumps. This issue arises from hardcoded values not accommodating devices with varying address lengths, potentially causing sensitive data exposure through information leaks. Such leaks can occur when address lengths deviate from the expected six bytes, resulting in uninitialized data being stored in memory during routine operations. It is crucial for system administrators to swiftly apply relevant updates to safeguard against this vulnerability.

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