CVE-2021-28972 (Medium) detected in linuxlinux-4.6

[mend-bolt-for-github[bot]]

CVE-2021-28972 - Medium Severity Vulnerability

Vulnerable Library - linuxlinux-4.6

The Linux Kernel

Library home page: https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/?wsslib=linux

Found in HEAD commit: 984ffa0a89a9fdf8f38e12acd409f6c51477abd3

Found in base branch: master

Vulnerable Source Files (3)

/drivers/pci/hotplug/rpadlpar_sysfs.c /drivers/pci/hotplug/rpadlpar_sysfs.c /drivers/pci/hotplug/rpadlpar_sysfs.c

Vulnerability Details

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.

Publish Date: 2021-03-22

URL: CVE-2021-28972

CVSS 3 Score Details (6.7)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: High - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28972

Release Date: 2021-03-22

Fix Resolution: v4.4.263, v4.9.263, v4.14.227, v4.19.183, v5.4.108, v5.10.26, v5.11.9, v5.12-rc4

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[mend-bolt-for-github[bot]]

:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.

[mend-bolt-for-github[bot]]

:information_source: This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.