CVE-2023-6660

CVSS 3.1 Score 6.5 of 10 (medium)

Details

Published Dec 13, 2023
Updated: Mar 22, 2024

Summary

CVE-2023-6660 is a vulnerability affecting NFS (Network File System) clients. When a program appends data to a file on an NFS mount, the client may fail to copy the new data properly, instead overwriting it with previously stored data from the packet buffer. This issue can allow an unprivileged user on an affected system to disclose sensitive information that was previously stored in the mbufs, used for network communication. The vulnerability can also lead to data corruption when triggered unintentionally by system applications, resulting in corrupted data being transmitted over the network and potentially accessible to other hosts. Importantly, the NFS server version or implementation does not impact the vulnerability, as it only affects the client.

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