CVE-2024-26778

Severity CVSS v4.0:

Pending analysis

Type:

CWE-369 Divide By Zero

Publication date:

03/04/2024

Last modified:

27/02/2025

Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: savage: Error out if pixclock equals zero The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn&#39;t check the value of pixclock, it may cause divide-by-zero error. Although pixclock is checked in savagefb_decode_var(), but it is not checked properly in savagefb_probe(). Fix this by checking whether pixclock is zero in the function savagefb_check_var() before info->var.pixclock is used as the divisor. This is similar to CVE-2022-3061 in i740fb which was fixed by commit 15cf0b8.

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::::::::		4.19.308 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.270 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.211 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.150 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.80 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.19 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.7.7 (excluding)
cpe:2.3:o:linux:linux_kernel:6.8:rc1::::::
cpe:2.3:o:debian:debian_linux:10.0:::::::*

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

CVE-2024-26778

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools