SB2018121721 - Fedora 28 update for kernel, kernel-headers, kernel-tools

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Race condition (CVE-ID: CVE-2018-14625)

The vulnerability allows a local attacker to obtain potentially sensitive information.

The weakness exists due to a race condition between connect() and close() function. A local attacker can use the AF_VSOCK protocol to obtain sensitive information possibly intercept or corrupt AF_VSOCK messages destined to other clients.

2) Memory corruption (CVE-ID: CVE-2018-20169)

The vulnerability allows a local attacker to cause DoS condition or execute arbitrary code on the target system.

The vulnerability exists in the USB subsystem due to improper checks on the minimum and maximum size of data allowed when reading an extra descriptor by the USB subsystem of the affected software, related to the __usb_get_extra_descriptor in the drivers/usb/core/usb.c source code file. A local attacker can insert a USB device designed to submit malicious input, trigger memory corruption and cause the service to crash or execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Remediation

Install update from vendor's website.

References

• https://bodhi.fedoraproject.org/updates/FEDORA-2018-6e8c330d50