Impact: Moderate Public Date: 2019-06-13 CWE: CWE-416 Bugzilla: 1721962: CVE-2019-12819 kernel: use-after-free in function __mdiobus_register() in drivers/net/phy/mdio_bus.c An issue was discovered in the Linux kernel before 5.0. The function __mdiobus_register() in drivers/net/phy/mdio_bus.c calls put_device(), which will trigger a fixed_mdio_bus_init use-after-free. This will cause a denial of service.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2019-12819 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 | 5.1 |
---|---|
CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Attack Vector | Local |
Attack Complexity | Low |
Privileges Required | None |
User Interaction | None |
Scope | Unchanged |
Confidentiality | Low |
Integrity Impact | Low |
Availability Impact | None |
Platform | Package | State |
---|---|---|
Red Hat Virtualization 4 | kernel | Under investigation |
Red Hat Enterprise MRG 2 | kernel-rt | Under investigation |
Red Hat Enterprise Linux 8 | kernel | Under investigation |
Red Hat Enterprise Linux 8 | kernel-rt | Under investigation |
Red Hat Enterprise Linux 7 | kernel-alt | Under investigation |
Red Hat Enterprise Linux 7 | kernel | Under investigation |
Red Hat Enterprise Linux 7 | kernel-rt | Under investigation |
Red Hat Enterprise Linux 6 | kernel | Under investigation |
Red Hat Enterprise Linux 5 | kernel | Under investigation |