SB2016100406 - Red Hat update for kernel
Published: October 4, 2016
Security Bulletin ID
SB2016100406
Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Data handling (CVE-ID: CVE-2016-4470)
The vulnerability allows a local attacker to cause DoS condition on the target system.The weakness exists in the key_reject_and_link function in security/keys/key.c due to it does not ensure that a certain data structure is initialized. A local attacker can cause the service to crash via vectors involving a crafted keyctl request2 command.
2) Heap-based buffer overflow (CVE-ID: CVE-2016-5829)
The vulnerability allows a local attacker to cause DoS condition or gain elevated privileges on the target system.The weakness exists in the hiddev_ioctl_usage function in drivers/hid/usbhid/hiddev.c due to heap-based buffer overflow. A local attacker can cause the service to crash or gain elevated privileges via a crafted (1) HIDIOCGUSAGES or (2) HIDIOCSUSAGES ioctl call.
Remediation
Install update from vendor's website.