CVE-2019-12450 : What You Need to Know

This CVE-2019-12450 article provides insights into a vulnerability in GNOME GLib versions 2.15.0 through 2.61.1 that affects file permissions during copying operations.

Understanding CVE-2019-12450

The file_copy_fallback function in gio/gfile.c in GNOME GLib versions 2.15.0 through 2.61.1 does not effectively limit file permissions during a copying operation, utilizing default permissions instead.

What is CVE-2019-12450?

The vulnerability in GNOME GLib allows for improper restriction of file permissions during copy operations, potentially leading to unauthorized access.

The Impact of CVE-2019-12450

This vulnerability could be exploited by attackers to gain unauthorized access to sensitive files, compromising the security and confidentiality of data.

Technical Details of CVE-2019-12450

The technical details of CVE-2019-12450 highlight the specific aspects of the vulnerability.

Vulnerability Description

The file_copy_fallback function in gio/gfile.c in GNOME GLib 2.15.0 through 2.61.1 does not properly restrict file permissions during a copy operation, leading to the use of default permissions.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Versions: 2.15.0 through 2.61.1

Exploitation Mechanism

Attackers can exploit this vulnerability by initiating a copy operation, leveraging default permissions to access files without proper restrictions.

Mitigation and Prevention

Effective mitigation strategies are crucial to address CVE-2019-12450 and enhance system security.

Immediate Steps to Take

Update GNOME GLib to a patched version that addresses the file permissions issue.
Monitor file permissions and access controls to detect unauthorized activities.

Long-Term Security Practices

Implement least privilege access to limit file permissions based on user roles.
Conduct regular security audits to identify and remediate vulnerabilities proactively.

Patching and Updates

Apply security patches provided by GNOME GLib promptly to mitigate the vulnerability.