SB2017101116 - Ubuntu update for Linux kernel
Published: October 11, 2017
Security Bulletin ID
SB2017101116
Severity
High
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Configuration error (CVE-ID: CVE-2016-8633)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.The weakness exists in drivers/firewire/net.c due to using certain unusual hardware configurations. A remote attacker can execute arbitrary code via specially crafted fragmented packets.
Successful exploitation of the vulnerability may result in system compromise.
2) Divide by zero (CVE-ID: CVE-2017-14106)
The vulnerability allows a local attacker to cause DoS condition on the target system.The weakness exists due to divide-by-zero error in the tcp_disconnect() function in net/ipv4/tcp.c. A local attacker can trigger a disconnect within a certain tcp_recvmsg code path and cause kernel panic.
Successful exploitation of the vulnerability results in denial of service.
Remediation
Install update from vendor's website.