CVE-2018-20854
kernel: Out-of-bounds read in drivers/phy/mscc/phy-ocelot-serdes.c
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · July 26, 2019
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel’s implementation of ocelot-serdes hardware. An incorrect limits calculation allowed an off-by-one calculation, which could read out of bounds data and panic the system. If the data was not out of bounds, the following code could then write data into the out of bounds area, corrupting memory or other possible consequences.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 4.7CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer