CVE-2023-54104
In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: fsl_upm: Fix an off-by one test in fun_exec_op() 'op-cs' is copied in 'fun->mchip_number' which is used to access the 'mchip_offsets' and the 'rnb_gpio' arrays.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). 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: mtd: rawnand: fsl_upm: Fix an off-by one test in fun_exec_op() 'op-cs' is copied in 'fun->mchip_number' which is used to access the 'mchip_offsets' and the 'rnb_gpio' arrays. These arrays have NAND_MAX_CHIPS elements, so the index must be below this limit. Fix the sanity check in order to avoid the NAND_MAX_CHIPS value. This would lead to out-of-bound accesses.
- 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
- 0.16% probability · 6th percentile
- CISA KEV
- Not listed
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/1f09d67d390647f83f8f9d26382b0daa43756e6f
- https://git.kernel.org/stable/c/49e57caf967a969f6b955c88805f2d160910aa12
- https://git.kernel.org/stable/c/c6abce60338aa2080973cd95be0aedad528bb41f
- https://git.kernel.org/stable/c/eb7a5e4d14c8659cb97db6863316280e15f67209
- https://git.kernel.org/stable/c/f4b700c71802c81e6f9dce362ee7a0312c8377ba
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.