CVE-2024-26828

Severity CVSS v4.0:

Pending analysis

Type:

CWE-191 Integer Underflow (Wrap or Wraparound)

Publication date:

17/04/2024

Last modified:

08/04/2025

Description

In the Linux kernel, the following vulnerability has been resolved: cifs: fix underflow in parse_server_interfaces() In this loop, we step through the buffer and after each item we check if the size_left is greater than the minimum size we need. However, the problem is that "bytes_left" is type ssize_t while sizeof() is type size_t. That means that because of type promotion, the comparison is done as an unsigned and if we have negative bytes left the loop continues instead of ending.

Impact

Vector 3.x

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

Base Score: 6.70 MEDIUM
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

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

Base Score 3.x

6.70

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	4.18 (including)	6.1.79 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.18 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.7.6 (excluding)
cpe:2.3:o:linux:linux_kernel:6.8:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.8:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.8:rc3::::::
cpe:2.3:o:linux:linux_kernel:6.8:rc4::::::

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

CVE-2024-26828

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools