CVE-2018-10911 Explained : Impact and Mitigation
Learn about CVE-2018-10911, a vulnerability in GlusterFS affecting Red Hat systems. Discover the impact, exploitation risks, and mitigation steps to secure your systems.
A vulnerability has been identified in the dic_unserialize function of GlusterFS, affecting Red Hat systems. This flaw could allow an attacker to extract memory and manipulate stored dict values.
Understanding CVE-2018-10911
This CVE involves a flaw in GlusterFS that mishandles negative key length values, potentially leading to memory exposure and manipulation.
What is CVE-2018-10911?
The vulnerability in the dic_unserialize function of GlusterFS allows attackers to read memory from various locations and incorporate it into stored dict values.
The Impact of CVE-2018-10911
- CVSS Base Score: 6.5 (Medium Severity)
- Attack Vector: Network
- Confidentiality Impact: High
- Privileges Required: Low
- Exploiting this flaw could result in unauthorized access to sensitive information stored in the affected systems.
Technical Details of CVE-2018-10911
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The vulnerability arises from GlusterFS's improper handling of negative key length values, enabling memory extraction and manipulation by malicious actors.
Affected Systems and Versions
- Product: GlusterFS
- Vendor: Red Hat
- Affected Version: n/a
Exploitation Mechanism
The flaw can be exploited by manipulating key length values to read memory from unintended locations and alter stored dict values.
Mitigation and Prevention
Protecting systems from CVE-2018-10911 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Apply security patches provided by Red Hat promptly.
- Monitor system logs for any suspicious activities.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly update and patch GlusterFS and other software components.
- Conduct security audits and penetration testing to identify and address vulnerabilities proactively.
Patching and Updates
- Stay informed about security advisories from Red Hat and apply relevant patches as soon as they are released.