Integer overflow in Linux

CVE-2024-53146

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent a potential integer overflow If the tag length is >= U32_MAX - 3 then the "length + 4" addition can result in an integer overflow. Address this by splitting the decoding into several steps so that decode_cb_compound4res() does not have to perform arithmetic on the unsafe length value.

Vulnerability class: Integer Overflow

EPSS: 0.002 (14.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-53146?
CVE-2024-53146 is a critical-severity vulnerability in Linux, classified under Integer Overflow or Wraparound. CVSS score: 9.1/10. Published 2024-12-24.
How severe is CVE-2024-53146?
Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2024-53146 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.