CVE-2023-52434

Summary

CVE-2023-52434 is a vulnerability affecting the Linux kernel's SMB (Server Message Block) implementation. The issue lies in the smb2_parse_contexts() function, where invalid offsets or lengths in create contexts were not being validated properly. This can result in an out-of-bounds (OOB) read, leading to a kernel panic and potential system instability. An attacker could potentially exploit this vulnerability by crafting a specially crafted SMB request that triggers the OOB read, resulting in a denial-of-service (DoS) or potentially more serious consequences. The vulnerability has been resolved in the latest kernel update.

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