CVE-2024-42236

2024-08-0700:00:00

ubuntu.com

linux kernel

usb_string_copy

oob read/write

usb gadget configfs

cve-2024-42236

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.8

Confidence

High

JSON

In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: configfs: Prevent OOB read/write in usb_string_copy()
Userspace provided string ‘s’ could trivially have the length zero. Left
unchecked this will firstly result in an OOB read in the form
if (str[0 - 1] == '\n') followed closely by an OOB write in the form str[0 - 1] = ‘\0’`.
There is already a validating check to catch strings that are too long.
Let’s supply an additional check for invalid strings that are too short.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchlinux< anyUNKNOWN
ubuntu22.04noarchlinux< anyUNKNOWN
ubuntu24.04noarchlinux< anyUNKNOWN
ubuntu20.04noarchlinux-aws< anyUNKNOWN
ubuntu22.04noarchlinux-aws< anyUNKNOWN
ubuntu24.04noarchlinux-aws< anyUNKNOWN
ubuntu20.04noarchlinux-aws-5.15< anyUNKNOWN
ubuntu20.04noarchlinux-azure< anyUNKNOWN
ubuntu22.04noarchlinux-azure< anyUNKNOWN
ubuntu24.04noarchlinux-azure< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	linux	< any	UNKNOWN
ubuntu	22.04	noarch	linux	< any	UNKNOWN
ubuntu	24.04	noarch	linux	< any	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	24.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< any	UNKNOWN
ubuntu	20.04	noarch	linux-azure	< any	UNKNOWN
ubuntu	22.04	noarch	linux-azure	< any	UNKNOWN
ubuntu	24.04	noarch	linux-azure	< any	UNKNOWN