CVE-2024-49999 Information

Description

In the Linux kernel the following vulnerability has been resolved:

afs: Fix the setting of the server responding flag

In afs_wait_for_operation() we set transcribe the call responded flag to the server record that we used after doing the fileserver iteration loop - but it’s possible to exit the loop having had a response from the server that we’ve discarded (e.g. it returned an abort or we started receiving data but the call didn’t complete).

This means that op->server might be NULL but we don’t check that before attempting to set the server flag.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

https://git.kernel.org/stable/c/3d51ab44123f35dd1d646d99a15ebef10f55e263 https://git.kernel.org/stable/c/97c953572d98080c5f1486155350bb688041747a https://git.kernel.org/stable/c/ff98751bae40faed1ba9c6a7287e84430f7dec64

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5