CVE-2019-12111 Explained : Impact and Mitigation
Learn about CVE-2019-12111, a Denial of Service vulnerability in MiniUPnP MiniUPnPd through version 2.1, caused by a NULL pointer dereference in pcpserver.c. Find mitigation steps and preventive measures here.
MiniUPnPd through version 2.1 is vulnerable to a Denial of Service (DoS) attack due to a NULL pointer dereference in the copyIPv6IfDifferent function in pcpserver.c.
Understanding CVE-2019-12111
This CVE involves a vulnerability in MiniUPnP MiniUPnPd through version 2.1, leading to a Denial of Service (DoS) risk.
What is CVE-2019-12111?
CVE-2019-12111 is a vulnerability in MiniUPnP MiniUPnPd through version 2.1, resulting from a NULL pointer dereference in the copyIPv6IfDifferent function in pcpserver.c.
The Impact of CVE-2019-12111
The vulnerability can be exploited to launch a Denial of Service (DoS) attack, potentially disrupting the availability of the affected system.
Technical Details of CVE-2019-12111
This section provides more technical insights into the CVE.
Vulnerability Description
The vulnerability in MiniUPnP MiniUPnPd through version 2.1 is caused by a NULL pointer dereference in the copyIPv6IfDifferent function in pcpserver.c.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: All versions up to 2.1
Exploitation Mechanism
The vulnerability can be exploited by triggering the NULL pointer dereference in the copyIPv6IfDifferent function in pcpserver.c.
Mitigation and Prevention
Protecting systems from CVE-2019-12111 is crucial to ensure security.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Monitor security advisories for updates on this vulnerability.
Long-Term Security Practices
- Regularly update and patch software to mitigate known vulnerabilities.
- Implement network security measures to prevent and detect DoS attacks.
Patching and Updates
- Check for and apply the latest patches released by MiniUPnP to address this vulnerability.