CVE-2020-12867 : Vulnerability Insights and Analysis
Learn about CVE-2020-12867, a NULL pointer dereference vulnerability in SANE Backends before 1.0.30, allowing a denial of service attack by a malicious device on the victim's local network.
A NULL pointer dereference in sanei_epson_net_read in SANE Backends before 1.0.30 allows a malicious device connected to the same local network as the victim to cause a denial of service, aka GHSL-2020-075.
Understanding CVE-2020-12867
This CVE involves a vulnerability in SANE Backends that could lead to a denial of service attack.
What is CVE-2020-12867?
CVE-2020-12867 is a NULL pointer dereference vulnerability in sanei_epson_net_read in SANE Backends before version 1.0.30. This flaw enables an attacker on the same local network to trigger a denial of service attack.
The Impact of CVE-2020-12867
The vulnerability allows a malicious device within the victim's local network to exploit the NULL pointer dereference, leading to a denial of service condition on the affected system.
Technical Details of CVE-2020-12867
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The vulnerability lies in the sanei_epson_net_read function in SANE Backends before version 1.0.30, allowing an attacker to exploit a NULL pointer dereference.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by a malicious device connected to the same local network as the victim, leveraging the NULL pointer dereference in the sanei_epson_net_read function.
Mitigation and Prevention
Protecting systems from CVE-2020-12867 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Apply security updates provided by the vendor promptly.
- Implement network segmentation to restrict access to critical systems.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update and patch software to mitigate known vulnerabilities.
- Conduct security training for users to recognize and report potential security threats.
- Employ intrusion detection and prevention systems to enhance network security.
Patching and Updates
Ensure that the SANE Backends software is updated to version 1.0.30 or newer to address the vulnerability.