CVE-2022-48732
In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix off by one in BIOS boundary checking Bounds checking when parsing init scripts embedded in the BIOS reject access to the last byte.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.24%). 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: drm/nouveau: fix off by one in BIOS boundary checking Bounds checking when parsing init scripts embedded in the BIOS reject access to the last byte. This causes driver initialization to fail on Apple eMac's with GeForce 2 MX GPUs, leaving the system with no working console. This is probably only seen on OpenFirmware machines like PowerPC Macs because the BIOS image provided by OF is only the used parts of the ROM, not a power-of-two blocks read from PCI directly so PCs always have empty bytes at the end that are never accessed.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-193
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/1b777d4d9e383d2744fc9b3a09af6ec1893c8b1aPatch
- https://git.kernel.org/stable/c/909d3ec1bf9f0ec534bfc081b77c0836fea7b0e2Patch
- https://git.kernel.org/stable/c/acc887ba88333f5fec49631f12d8cc7ebd95781cPatch
- https://git.kernel.org/stable/c/b2a21669ee98aafc41c6d42ef15af4dab9e6e882Patch
- https://git.kernel.org/stable/c/d4b746e60fd8eaa8016e144223abe91158edcdadPatch
- https://git.kernel.org/stable/c/d877e814a62b7de9069aeff8bc1d979dfc996e06Patch
- https://git.kernel.org/stable/c/e7c36fa8a1e63b08312162179c78a0c7795ea369Patch
- https://git.kernel.org/stable/c/f071d9fa857582d7bd77f4906691f73d3edeab73Patch
- https://git.kernel.org/stable/c/1b777d4d9e383d2744fc9b3a09af6ec1893c8b1aPatch
- https://git.kernel.org/stable/c/909d3ec1bf9f0ec534bfc081b77c0836fea7b0e2Patch
- https://git.kernel.org/stable/c/acc887ba88333f5fec49631f12d8cc7ebd95781cPatch
- https://git.kernel.org/stable/c/b2a21669ee98aafc41c6d42ef15af4dab9e6e882Patch
- https://git.kernel.org/stable/c/d4b746e60fd8eaa8016e144223abe91158edcdadPatch
- https://git.kernel.org/stable/c/d877e814a62b7de9069aeff8bc1d979dfc996e06Patch
- https://git.kernel.org/stable/c/e7c36fa8a1e63b08312162179c78a0c7795ea369Patch
- https://git.kernel.org/stable/c/f071d9fa857582d7bd77f4906691f73d3edeab73Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.