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Review reviewHigh

CVE-2024-46844

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: um: line: always fill *error_out in setup_one_line() The pointer isn't initialized by callers, but I have encountered cases where it's still printed; initialize it in all possible cases in setup_one_line().

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2024.09.27
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: um: line: always fill *error_out in setup_one_line() The pointer isn't initialized by callers, but I have encountered cases where it's still printed; initialize it in all possible cases in setup_one_line().

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 31efcebb7d7196adcee73027f513d7c0bf572b47 < 3bedb7ce080690d0d6172db790790c1219bcbdd5, >= 31efcebb7d7196adcee73027f513d7c0bf572b47 < 96301fdc2d533a196197c055af875fe33d47ef84, >= 31efcebb7d7196adcee73027f513d7c0bf572b47 < c8944d449fda9f58c03bd99649b2df09948fc874, >= 31efcebb7d7196adcee73027f513d7c0bf572b47 < 43f782c27907f306c664b6614fd6f264ac32cce6, >= 31efcebb7d7196adcee73027f513d7c0bf572b47 < 289979d64573f43df1d0e6bc6435de63a0d69cdf, >= 31efcebb7d7196adcee73027f513d7c0bf572b47 < ec5b47a370177d79ae7773858042c107e21f8ecc, >= 31efcebb7d7196adcee73027f513d7c0bf572b47 < fc843d3837ebcb1c16d3768ef3eb55e25d5331f2, >= 31efcebb7d7196adcee73027f513d7c0bf572b47 < 824ac4a5edd3f7494ab1996826c4f47f8ef0f63d, >= 3.4, < 4.19.322, >= 4.20 < 5.4.284, >= 5.5 < 5.10.226, >= 5.11 < 5.15.167, >= 5.16 < 6.1.110, >= 6.2 < 6.6.51, >= 6.7 < 6.10.10
Fixed versions
4.19.322, 5.4.284, 5.10.226, 5.15.167, 6.1.110, 6.6.51, 6.10.10

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-824
CVE-2024-46844 — Linux Linux, linux kernel | SECUFOCUS NOW