CVE-2023-34256

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Source
https://nvd.nist.gov/vuln/detail/CVE-2023-34256
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-34256.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-34256
Downstream
Related
Published
2023-05-31T20:15:10Z
Modified
2025-08-09T20:01:26Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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 ext4groupdesc_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.

Database specific 
{
    "isDisputed": true
}
References

Affected packages