SB2018012702 - Denial of service in Linux Kernel
Published: January 27, 2018
Security Bulletin ID
SB2018012702
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) Null pointer dereference (CVE-ID: CVE-2018-1065)
The vulnerability allows a local attacker to cause DoS condition no the target system.The weakness exists due to NULL pointer dereference. A local attacker with the capability to insert iptables/netfilter rules can leverage the CAP_NET_RAW or CAP_NET_ADMIN capability, related to arpt_do_table in net/ipv4/netfilter/arp_tables.c, ipt_do_table in net/ipv4/netfilter/ip_tables.c, and ip6t_do_table in net/ipv6/netfilter/ip6_tables.c, trigger a jump to an invalid chain and cause the system to crash.
Remediation
Install update from vendor's website.