SB2017022305 - Red Hat update for kernel
Published: February 23, 2017
Security Bulletin ID
SB2017022305
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2017-6074)
The vulnerability allows a local user to cause kernel panic.
The vulnerability exists due to invalid free in the dccp_rcv_state_process() function in net/dccp/input.c file in the Linux kernel through 4.9.11 when processing DCCP_PKT_REQUEST packet data structures in the LISTEN state. A local user can use userspace application to make an IPV6_RECVPKTINFO setsockopt system call and cause kernel panic.
Successful exploitation of this vulnerability may result in denial of service condition.
Remediation
Install update from vendor's website.