Integer overflow in Linux

CVE-2022-49643

In the Linux kernel, the following vulnerability has been resolved: ima: Fix a potential integer overflow in ima_appraise_measurement When the ima-modsig is enabled, the rc passed to evm_verifyxattr() may be negative, which may cause the integer overflow problem.

Vulnerability class: Integer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (18.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-49643: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

  • Linux — versions 39b07096364a42c516415d5f841069e885234e61, 5.4, 0
  • Linux Kernel — versions 5.19

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-49643?
CVE-2022-49643 is a high-severity vulnerability in Linux, classified under Integer Overflow or Wraparound. CVSS score: 7.1/10. Published 2025-02-26.
How severe is CVE-2022-49643?
High severity. CVSS v3 base score is 7.1 out of 10.