The Linux kernel was found vulnerable to a NULL pointer dereference in the drivers/net/phy/mdio-bcm-unimac.c:unimac_mdio_probe() function caused by an unchecked return value from the platform_get_resource() function. A successful flaw exploitation can cause a system panic and a denial of service. This flaw is believed not to be an attacker triggerable as bad return value can be caused by hardware misconfiguration.
Find out more about CVE-2018-8043 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 4.1 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Local |
| Attack Complexity | High |
| Privileges Required | High |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | High |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected |
| Red Hat Enterprise Linux 7 | kernel-alt | Affected |
| Red Hat Enterprise Linux 7 | kernel | Not affected |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected |
| Red Hat Enterprise Linux 6 | kernel | Not affected |
| Red Hat Enterprise Linux 5 | kernel | Not affected |
Vulmon