CVE-2022-49749

Severity CVSS v4.0:

Pending analysis

Type:

CWE-190 Integer Overflow or Wraparound

Publication date:

27/03/2025

Last modified:

01/10/2025

Description

In the Linux kernel, the following vulnerability has been resolved: i2c: designware: use casting of u64 in clock multiplication to avoid overflow In functions i2c_dw_scl_lcnt() and i2c_dw_scl_hcnt() may have overflow by depending on the values of the given parameters including the ic_clk. For example in our use case where ic_clk is larger than one million, multiplication of ic_clk * 4700 will result in 32 bit overflow. Add cast of u64 to the calculation to avoid multiplication overflow, and use the corresponding define for divide.

Impact

Vector 3.x

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

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	3.2 (including)	5.10.166 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.91 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.9 (excluding)
cpe:2.3:o:linux:linux_kernel:6.2:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc3::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc4::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc5::::::

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

CVE-2022-49749

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools