SB2017042402 - Ubuntu update for Linux kernel (HWE)
Published: April 24, 2017
Security Bulletin ID
SB2017042402
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) Assertion failure (CVE-ID: CVE-2017-5986)
The vulnerability allows a local user to cause kernel panic.
The vulnerability exists due to a race condition in the sctp_wait_for_sndbuf() function in net/sctp/socket.c in the Linux kernel before 4.9.11. A local user can use userspace application to trigger a BUG_ON() system call if the socket tx buffer is full and cause kernel panic.
Successful exploitation of this vulnerability may result in denial of service condition.
Remediation
Install update from vendor's website.