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CVE-2018-8043

Status Candidate

Overview

The unimac_mdio_probe function in drivers/net/phy/mdio-bcm-unimac.c in the Linux kernel through 4.15.8 does not validate certain resource availability, which allows local users to cause a denial of service (NULL pointer dereference).

Related Files

Kernel Live Patch Security Notice LSN-0037-1
Posted May 7, 2018
Authored by Benjamin M. Romer

Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. It was discovered that a race condition leading to a use-after-free vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux
advisories | CVE-2017-0861, CVE-2017-15129, CVE-2017-16995, CVE-2017-17448, CVE-2017-17450, CVE-2018-1000199, CVE-2018-5333, CVE-2018-5344, CVE-2018-8043
MD5 | 70c039f34496a5cffda6c354f241701c
Ubuntu Security Notice USN-3632-1
Posted Apr 24, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3632-1 - It was discovered that a race condition leading to a use-after-free vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the KVM implementation in the Linux kernel allowed passthrough of the diagnostic I/O port 0x80. An attacker in a guest VM could use this to cause a denial of service in the host OS. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-0861, CVE-2017-1000407, CVE-2017-15129, CVE-2017-16994, CVE-2017-17448, CVE-2017-17450, CVE-2017-17741, CVE-2017-17805, CVE-2017-17806, CVE-2017-17807, CVE-2018-1000026, CVE-2018-5332, CVE-2018-5333, CVE-2018-5344, CVE-2018-8043
MD5 | 5397a8ba2d3c666978177acc78b70114
Ubuntu Security Notice USN-3630-2
Posted Apr 24, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3630-2 - USN-3630-1 fixed a vulnerability in the Linux kernel for Ubuntu 17.10. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 17.10 for Ubuntu 16.04 LTS. It was discovered that the Broadcom UniMAC MDIO bus controller driver in the Linux kernel did not properly validate device resources. A local attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-8043
MD5 | 3fa25615cd959407ed98d61763e57087
Ubuntu Security Notice USN-3630-1
Posted Apr 24, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3630-1 - It was discovered that the Broadcom UniMAC MDIO bus controller driver in the Linux kernel did not properly validate device resources. A local attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-8043
MD5 | e288769b9317316ee28688732bf95ae9
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