Review reviewHigh

CVE-2022-48632

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: i2c: mlxbf: prevent stack overflow in mlxbf_i2c_smbus_start_transaction() memcpy() is called in a loop while 'operation->length' upper bound is not checked and 'data_idx' also increments.

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2024.04.28
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: i2c: mlxbf: prevent stack overflow in mlxbf_i2c_smbus_start_transaction() memcpy() is called in a loop while 'operation->length' upper bound is not checked and 'data_idx' also increments.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= b5b5b32081cd206baa6e58cca7f112d9723785d6 < 48ee0a864d1af02eea98fc825cc230d61517a71e, >= b5b5b32081cd206baa6e58cca7f112d9723785d6 < dc2a0c587006f29b724069740c48654b9dcaebd2, >= b5b5b32081cd206baa6e58cca7f112d9723785d6 < 3b5ab5fbe69ebbee5692c72b05071a43fc0655d8, >= b5b5b32081cd206baa6e58cca7f112d9723785d6 < de24aceb07d426b6f1c59f33889d6a964770547b, >= 5.10, >= 5.10 < 5.10.146, >= 5.11 < 5.15.71, >= 5.16 < 5.19.12, 6.0
Fixed versions
5.10.146, 5.15.71, 5.19.12

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-787