Buffer overflow in iptables - CVE-2019-11360
Published: July 11, 2019
Vulnerability identifier: #VU19150
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2019-11360
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: netfilter
Affected software:
iptables
iptables
Detailed vulnerability description
The vulnerability allows an attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in add_param_to_argv() function in iptables/xshared.c when parsing, passed as argument to iptables-restore. A remote attacker can create a specially crafted files with iptables rules, trick a system administrator to pass it to the iptables-restore tool, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system but requires significant social engineering.
How to mitigate CVE-2019-11360
Install updates from vendor's website.