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CVE-2021-28972
Good to know:
Date: March 22, 2021
In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and remove_slot_store mishandle drc_name '\0' termination, aka CID-cc7a0bb058b8.
Language: C++
Severity Score
Related Resources (13)
Severity Score
Weakness Type (CWE)
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-120Top Fix
Upgrade Version
Upgrade to version v4.4.263, v4.9.263, v4.14.227, v4.19.183, v5.4.108, v5.10.26, v5.11.9, v5.12-rc4
CVSS v3.1
Base Score: |
|
---|---|
Attack Vector (AV): | LOCAL |
Attack Complexity (AC): | LOW |
Privileges Required (PR): | HIGH |
User Interaction (UI): | NONE |
Scope (S): | UNCHANGED |
Confidentiality (C): | HIGH |
Integrity (I): | HIGH |
Availability (A): | HIGH |
CVSS v2
Base Score: |
|
---|---|
Access Vector (AV): | LOCAL |
Access Complexity (AC): | LOW |
Authentication (AU): | NONE |
Confidentiality (C): | COMPLETE |
Integrity (I): | COMPLETE |
Availability (A): | COMPLETE |
Additional information: |