In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor Syzbot has identified a bug in usbcore (see the Closes: tag below) caused by our assumption that the reserved bits in an endpoint descriptor's bEndpointAddress field will always be 0. As a result of the bug, the endpoint_is_duplicate() routine in config.c (and possibly other routines as well) may believe that two descriptors are for distinct endpoints, even though they have the same direction and endpoint number. This can lead to confusion, including the bug identified by syzbot (two descriptors with matching endpoint numbers and directions, where one was interrupt and the other was bulk). To fix the bug, we will clear the reserved bits in bEndpointAddress when we parse the descriptor. (Note that both the USB-2.0 and USB-3.1 specs say these bits are "Reserved, reset to zero".) This requires us to make a copy of the descriptor earlier in usb_parse_endpoint() and use the copy instead of the original when checking for duplicates.
History

Wed, 25 Sep 2024 19:00:00 +0000

Type Values Removed Values Added
Metrics threat_severity

Low

threat_severity

Moderate


Tue, 24 Sep 2024 11:00:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:8

Tue, 24 Sep 2024 06:30:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/a:redhat:enterprise_linux:8::nfv
Vendors & Products Redhat
Redhat enterprise Linux

Wed, 11 Sep 2024 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 30 Aug 2024 10:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-99
Metrics threat_severity

Moderate

threat_severity

Low


cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-07-29T14:31:49.876Z

Updated: 2024-11-05T09:35:24.670Z

Reserved: 2024-07-12T12:17:45.619Z

Link: CVE-2024-41035

cve-icon Vulnrichment

Updated: 2024-09-11T12:42:20.409Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-07-29T15:15:12.077

Modified: 2024-07-29T16:21:52.517

Link: CVE-2024-41035

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-07-29T00:00:00Z

Links: CVE-2024-41035 - Bugzilla