CVE-2022-49388

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

26/02/2025

Last modified:

25/03/2025

Description

In the Linux kernel, the following vulnerability has been resolved: ubi: ubi_create_volume: Fix use-after-free when volume creation failed There is an use-after-free problem for &#39;eba_tbl&#39; in ubi_create_volume()&#39;s error handling path: ubi_eba_replace_table(vol, eba_tbl) vol->eba_tbl = tbl out_mapping: ubi_eba_destroy_table(eba_tbl) // Free &#39;eba_tbl&#39; out_unlock: put_device(&vol->dev) vol_release kfree(tbl->entries) // UAF Fix it by removing redundant &#39;eba_tbl&#39; releasing. Fetch a reproducer in [Link].

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	4.12 (including)	4.14.283 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.247 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.198 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.122 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.47 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	5.17.15 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.18 (including)	5.18.4 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-49388

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools