CVE-2019-11360 : What You Need to Know
Learn about CVE-2019-11360, a buffer overflow vulnerability in iptables-restore in netfilter iptables 1.8.2, allowing attackers to crash the program or execute arbitrary code. Find mitigation steps here.
Iptables-restore in netfilter iptables version 1.8.2 is vulnerable to a buffer overflow, allowing attackers to crash the program or potentially execute arbitrary code. This vulnerability is associated with the function add_param_to_argv in xshared.c.
Understanding CVE-2019-11360
This CVE entry describes a buffer overflow vulnerability in iptables-restore in netfilter iptables version 1.8.2.
What is CVE-2019-11360?
CVE-2019-11360 is a security vulnerability in iptables-restore in netfilter iptables 1.8.2 that enables attackers to crash the program or potentially achieve code execution by using a specially crafted iptables-save file.
The Impact of CVE-2019-11360
The vulnerability allows attackers to crash the program or potentially execute arbitrary code, posing a significant risk to the affected systems.
Technical Details of CVE-2019-11360
This section provides more technical insights into the CVE-2019-11360 vulnerability.
Vulnerability Description
The vulnerability in iptables-restore in netfilter iptables 1.8.2 results from a buffer overflow, which can be exploited by attackers to crash the program or potentially execute arbitrary code.
Affected Systems and Versions
- Affected Systems: Not applicable
- Affected Versions: iptables version 1.8.2
Exploitation Mechanism
The vulnerability can be exploited by an attacker using a specially crafted iptables-save file to trigger the buffer overflow in the add_param_to_argv function in xshared.c.
Mitigation and Prevention
Protecting systems from CVE-2019-11360 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Monitor for any unusual activities on the network.
- Restrict network access to essential services.
Long-Term Security Practices
- Regularly update and patch all software and systems.
- Implement network segmentation to contain potential attacks.
- Conduct regular security audits and penetration testing.
Patching and Updates
Ensure that the affected iptables version 1.8.2 is updated with the latest patches to mitigate the vulnerability effectively.