Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2022-49047

Severity CVSS v4.0:
Pending analysis
Type:
CWE-416 Use After Free
Publication date:
26/02/2025
Last modified:
24/03/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> ep93xx: clock: Fix UAF in ep93xx_clk_register_gate()<br /> <br /> arch/arm/mach-ep93xx/clock.c:154:2: warning: Use of memory after it is freed [clang-analyzer-unix.Malloc]<br /> arch/arm/mach-ep93xx/clock.c:151:2: note: Taking true branch<br /> if (IS_ERR(clk))<br /> ^<br /> arch/arm/mach-ep93xx/clock.c:152:3: note: Memory is released<br /> kfree(psc);<br /> ^~~~~~~~~~<br /> arch/arm/mach-ep93xx/clock.c:154:2: note: Use of memory after it is freed<br /> return &amp;psc-&gt;hw;<br /> ^ ~~~~~~~~

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:*:*:*:*:*:*:*:* 5.16 (including) 5.17.4 (excluding)
cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools