CVE-2022-49946
In the Linux kernel, the following vulnerability has been resolved: clk: bcm: rpi: Prevent out-of-bounds access The while loop in raspberrypi_discover_clocks() relies on the assumption that the id of the last clock element is zero.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: clk: bcm: rpi: Prevent out-of-bounds access The while loop in raspberrypi_discover_clocks() relies on the assumption that the id of the last clock element is zero. Because this data comes from the Videocore firmware and it doesn't guarantuee such a behavior this could lead to out-of-bounds access. So fix this by providing a sentinel element.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.22% probability · 12th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/bc163555603e4ae9c817675ad80d618a4cdbfa2dPatch
- https://git.kernel.org/stable/c/c8b04b731d43366824841ebdca4ac715f95e0ea4Patch
- https://git.kernel.org/stable/c/fcae47b2d23c81603b01f56cf8db63ed64599d34Patch
- https://git.kernel.org/stable/c/ff0b144d4b0a9fbd6efe4d2c0a4b6c9bae2138d2Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.