SecuriTricks - CVE-2024-53150

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix out of bounds reads when finding clock sources The current USB-audio driver code doesn't check bLength of each descriptor at traversing for clock descriptors. That is, when a device provides a bogus descriptor with a shorter bLength, the driver might hit out-of-bounds reads. For addressing it, this patch adds sanity checks to the validator functions for the clock descriptor traversal. When the descriptor length is shorter than expected, it's skipped in the loop. For the clock source and clock multiplier descriptors, we can just check bLength against the sizeof() of each descriptor type. OTOH, the clock selector descriptor of UAC2 and UAC3 has an array of bNrInPins elements and two more fields at its tail, hence those have to be checked in addition to the sizeof() check.

Product(s) Impacted

Vendor	Product	Versions
Linux	Linux Kernel	*

Weaknesses

CWE-125

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

*CPE(s)

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
o	linux	linux_kernel	/	/	/	/	/	/	/	/
o	linux	linux_kernel	/	/	/	/	/	/	/	/
o	linux	linux_kernel	/	/	/	/	/	/	/	/
o	linux	linux_kernel	/	/	/	/	/	/	/	/
o	linux	linux_kernel	/	/	/	/	/	/	/	/
o	linux	linux_kernel	/	/	/	/	/	/	/	/
o	linux	linux_kernel	/	/	/	/	/	/	/	/

References

https://git.kernel.org/stable/c/096bb5b43edf755bc4477e64004fa3a20539ec2f

https://git.kernel.org/stable/c/45a92cbc88e4013bfed7fd2ccab3ade45f8e896b

https://git.kernel.org/stable/c/74cb86e1006c5437b1d90084d22018da30fddc77

https://git.kernel.org/stable/c/a3dd4d63eeb452cfb064a13862fb376ab108f6a6

https://git.kernel.org/stable/c/a632bdcb359fd8145e86486ff8612da98e239acd

https://git.kernel.org/stable/c/ab011f7439d9bbfd34fd3b9cef4b2d6d952c9bb9

https://git.kernel.org/stable/c/da13ade87a12dd58829278bc816a61bea06a56a9

https://git.kernel.org/stable/c/ea0fa76f61cf8e932d1d26e6193513230816e11d

CVSS Score

7.1 / 10

CVSS Data

Attack Vector: LOCAL
Attack Complexity: LOW
Privileges Required: LOW
Scope: UNCHANGED
Confidentiality Impact: HIGH
Integrity Impact: NONE
Availability Impact: HIGH

View Vector String

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

Date

Published: Dec. 24, 2024, 12:15 p.m.
Last Modified: Jan. 7, 2025, 4:38 p.m.

Status : Analyzed

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVE-2024-53150