CVE-2020-12770 : What You Need to Know

An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a certain failure case, aka CID-83c6f2390040.

Understanding CVE-2020-12770

This CVE involves a vulnerability in the Linux kernel that could potentially impact systems running affected versions.

What is CVE-2020-12770?

The vulnerability in the Linux kernel through version 5.6.11, known as CID-83c6f2390040, arises from a missing sg_remove_request call in the sg_write function under specific failure conditions.

The Impact of CVE-2020-12770

The vulnerability could be exploited by an attacker to trigger a denial of service (DoS) condition or potentially execute arbitrary code on the target system.

Technical Details of CVE-2020-12770

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The issue stems from the sg_write function in the Linux kernel lacking an sg_remove_request call in a specific failure scenario, potentially leading to security risks.

Affected Systems and Versions

Linux kernel versions up to 5.6.11 are affected by this vulnerability.

Exploitation Mechanism

Attackers could exploit this vulnerability to cause a DoS condition or execute arbitrary code on vulnerable systems.

Mitigation and Prevention

Protecting systems from CVE-2020-12770 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply relevant security patches provided by the Linux kernel maintainers.
Monitor official sources for updates and advisories regarding this vulnerability.

Long-Term Security Practices

Regularly update and patch the Linux kernel to mitigate known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.
Conduct regular security assessments and audits to identify and address security gaps.

Patching and Updates

Stay informed about security updates and patches released by the Linux kernel community to address CVE-2020-12770.