SB2016080934 - SUSE Linux update for the Linux Kernel
Published: August 9, 2016
Security Bulletin ID
SB2016080934
Severity
High
Patch available
YES
Number of vulnerabilities
3
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 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) Memory corruption (CVE-ID: CVE-2016-4997)
The vulnerability allows a local user to obtain elevated privileges on the target system.The vulnerability exists due to a memory corruption error in the IPT_SO_SET_REPLACE compat_setsockopt() function.
Successful exploitation of this vulnerability may lead to arbitrary code execution with kernel-level privileges.
3) 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.