CVE-2023-34256

MEDIUM Year: 2023
CVSS v3 Score
5.5
Medium
Weakness Type
CWE-125
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Vulnerability Description

An issue was discovered in the Linux kernel before 6.3.3. There is an out-of-bounds read in crc16 in lib/crc16.c when called from fs/ext4/super.c because ext4_group_desc_csum does not properly check an offset. NOTE: this is disputed by third parties because the kernel is not intended to defend against attackers with the stated "When modifying the block device while it is mounted by the filesystem" access.

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