CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's eCryptfs subsystem, specifically in the handling of tag 70 packets, where a malformed packet can lead to an underflow in the calculation of the encrypted filename size. This flaw could potentially allow attackers to exploit the system by sending improperly sized packets, leading to unexpected behavior or data exposure. Linux system administrators and developers utilizing eCryptfs should prioritize this issue to ensure the integrity and security of their encrypted file systems.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: ecryptfs: reject too-small tag 70 packets ecryptfs_parse_tag_70_packet() subtracts fixed metadata fields from the parsed packet body size to derive the encrypted filename size. A malformed packet with a body smaller than those fixed fields can underflow that size calculation. Reject tag 70 packets before the subtraction unless the body contains the signature, cipher code, and at least one byte of encrypted filename data.