Linux · Kernel
CVE-2024-53150
ALSA: usb-audio: Fix out of bounds reads when finding clock sources
Was es ist
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.
CISA: Linux Kernel contains an out-of-bounds read vulnerability in the USB-audio driver that allows a local, privileged attacker to obtain potentially sensitive information.
Was zu tun ist
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Frist für US-Bundesbehörden: 30. April 2025
- Zur CISA-Liste hinzugefügt
- 9. April 2025
- Veröffentlicht
- 24. Dezember 2024
- Schweregrad
- Hoch 7,1 CVSS 3.1
- Wahrscheinlichkeit von Angriffen in den nächsten 30 Tagen (EPSS)
- 1,4% unter den obersten 28,6% aller bekannten Schwachstellen
- Schwachstellentyp
- CWE-125
- Mehr Details
- NVD · CVE.org · CISA
Alle Quellen (8)
- https://git.kernel.org/stable/c/a632bdcb359fd8145e86486ff8612da98e239acd
- https://git.kernel.org/stable/c/45a92cbc88e4013bfed7fd2ccab3ade45f8e896b
- https://git.kernel.org/stable/c/ab011f7439d9bbfd34fd3b9cef4b2d6d952c9bb9
- https://git.kernel.org/stable/c/da13ade87a12dd58829278bc816a61bea06a56a9
- https://git.kernel.org/stable/c/74cb86e1006c5437b1d90084d22018da30fddc77
- https://git.kernel.org/stable/c/ea0fa76f61cf8e932d1d26e6193513230816e11d
- https://git.kernel.org/stable/c/096bb5b43edf755bc4477e64004fa3a20539ec2f
- https://git.kernel.org/stable/c/a3dd4d63eeb452cfb064a13862fb376ab108f6a6
Weitere ausgenutzte Schwachstellen von Linux
| Hinzugefügt | Schwachstelle | Produkt | Schweregrad | Angriffswahrscheinlichkeit |
|---|---|---|---|---|
| 18.09.2026 | Improper Check for Unusual or Exceptional Conditions | Kernel | Kritisch 9,8 | 3,3% |
| 18.09.2026 | Race Condition | Kernel | Hoch 7,8 | 1,6% |
| 18.09.2026 | Out-of-Bounds Write | Kernel | Hoch 8,8 | 0,9% |
| 27.08.2026 | Unspecified | Kernel | Hoch 7,8 | 0,7% |
| 26.08.2026 | Out-of-Bounds Write | Kernel | Hoch 7,8 | 8,9% |
| 02.06.2026 | Improper Authentication | Kernel | Hoch 7,8 | 5,5% |
| 01.05.2026 | Incorrect Resource Transfer Between Spheres | Kernel | Hoch 7,8 | 98% |
| 26.01.2026 | Integer Overflow | Kernel | Hoch 7,8 | 15% |
Quellen: Known Exploited Vulnerabilities (CISA, gemeinfrei), CVE records (cve.org) und EPSS (FIRST). Die Angriffswahrscheinlichkeit ist die EPSS-Schätzung, dass jemand in den nächsten 30 Tagen versucht, die Schwachstelle auszunutzen.