CVE-2022-48938

2024-08-2200:00:00

ubuntu.com

linux kernel

vulnerability resolution

cdc-ncm

integer overflow

unsigned

sanity check

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

7.2

Confidence

High

JSON

In the Linux kernel, the following vulnerability has been resolved:
CDC-NCM: avoid overflow in sanity checking
A broken device may give an extreme offset like 0xFFF0
and a reasonable length for a fragment. In the sanity
check as formulated now, this will create an integer
overflow, defeating the sanity check. Both offset
and offset + len need to be checked in such a manner
that no overflow can occur.
And those quantities should be unsigned.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchlinux< anyUNKNOWN
ubuntu20.04noarchlinux-aws< anyUNKNOWN
ubuntu20.04noarchlinux-azure< anyUNKNOWN
ubuntu20.04noarchlinux-bluefield< anyUNKNOWN
ubuntu20.04noarchlinux-gcp< anyUNKNOWN
ubuntu20.04noarchlinux-gkeop< anyUNKNOWN
ubuntu20.04noarchlinux-ibm< anyUNKNOWN
ubuntu20.04noarchlinux-intel-iotg-5.15< anyUNKNOWN
ubuntu20.04noarchlinux-iot< anyUNKNOWN
ubuntu20.04noarchlinux-kvm< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	linux	< any	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	20.04	noarch	linux-azure	< any	UNKNOWN
ubuntu	20.04	noarch	linux-bluefield	< any	UNKNOWN
ubuntu	20.04	noarch	linux-gcp	< any	UNKNOWN
ubuntu	20.04	noarch	linux-gkeop	< any	UNKNOWN
ubuntu	20.04	noarch	linux-ibm	< any	UNKNOWN
ubuntu	20.04	noarch	linux-intel-iotg-5.15	< any	UNKNOWN
ubuntu	20.04	noarch	linux-iot	< any	UNKNOWN
ubuntu	20.04	noarch	linux-kvm	< any	UNKNOWN