CVE-2024-26828

medium

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.

References

https://git.kernel.org/stable/c/f7ff1c89fb6e9610d2b01c1821727729e6609308

https://git.kernel.org/stable/c/df2af9fdbc4ddde18a3371c4ca1a86596e8be301

https://git.kernel.org/stable/c/cffe487026be13eaf37ea28b783d9638ab147204

https://git.kernel.org/stable/c/7190353835b4a219abb70f90b06cdcae97f11512

Details

Source: Mitre, NVD

Published: 2024-04-17

Updated: 2024-04-17

Risk Information

CVSS v2

Base Score: 8.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:C/A:C

Severity: High

CVSS v3

Base Score: 6.7

Vector: CVSS:3.0/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

Severity: Medium