CVE-2024-26828

MEDIUM

Linux Kernel < 6.1.79 - Integer Underflow

Title source: rule
STIX 2.1

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.

Scores

CVSS v3 6.7
EPSS 0.0002
EPSS Percentile 4.8%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-191
Status published
Products (5)
linux/Kernel 4.18.0 - 6.1.79linux
linux/Kernel 6.2.0 - 6.6.18linux
linux/Kernel 6.7.0 - 6.7.6linux
linux/linux_kernel 6.8 rc1 (4 CPE variants)
linux/linux_kernel 4.18 - 6.1.79
Published Apr 17, 2024
Tracked Since Feb 18, 2026