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ubuntucveUbuntu.comUB:CVE-2024-42226
HistoryJul 30, 2024 - 12:00 a.m.

CVE-2024-42226

2024-07-3000:00:00
ubuntu.com
ubuntu.com
1
linux kernel
usb xhci
vulnerability
fix

CVSS3

4.6

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.2

Confidence

Low

EPSS

0

Percentile

9.5%

In the Linux kernel, the following vulnerability has been resolved:
usb: xhci: prevent potential failure in handle_tx_event() for Transfer
events without TRB
Some transfer events don’t always point to a TRB, and consequently don’t
have a endpoint ring. In these cases, function handle_tx_event() should
not proceed, because if ‘ep->skip’ is set, the pointer to the endpoint
ring is used.
To prevent a potential failure and make the code logical, return after
checking the completion code for a Transfer event without TRBs.

CVSS3

4.6

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.2

Confidence

Low

EPSS

0

Percentile

9.5%