CVE-2018-17206 Explained : Impact and Mitigation
CVE-2018-17206 affects Open vSwitch (OvS) versions 2.7.x through 2.7.6 with a buffer over-read issue in the decode_bundle function, allowing attackers to potentially conduct DoS attacks or disclose sensitive information. Learn about the impact, technical details, and mitigation steps.
Open vSwitch (OvS) versions 2.7.x through 2.7.6 are affected by a buffer over-read issue in the decode_bundle function, leading to a vulnerability.
Understanding CVE-2018-17206
A vulnerability in Open vSwitch (OvS) versions 2.7.x through 2.7.6 due to a buffer over-read issue in the decode_bundle function.
What is CVE-2018-17206?
CVE-2018-17206 is a vulnerability in Open vSwitch (OvS) versions 2.7.x through 2.7.6, specifically in the decode_bundle function in the lib/ofp-actions.c file. This vulnerability results in a buffer over-read problem during BUNDLE action decoding.
The Impact of CVE-2018-17206
The vulnerability allows attackers to exploit the buffer over-read issue, potentially leading to information disclosure or denial of service (DoS) attacks.
Technical Details of CVE-2018-17206
Open vSwitch (OvS) versions 2.7.x through 2.7.6 are affected by a buffer over-read issue in the decode_bundle function.
Vulnerability Description
The decode_bundle function in the lib/ofp-actions.c file of Open vSwitch (OvS) versions 2.7.x through 2.7.6 suffers from a buffer over-read vulnerability during BUNDLE action decoding.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: 2.7.x through 2.7.6
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting malicious BUNDLE actions, triggering the buffer over-read issue and potentially causing a DoS or information disclosure.
Mitigation and Prevention
Steps to address and prevent the CVE-2018-17206 vulnerability.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Monitor for any unusual network activity that could indicate exploitation of the vulnerability.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly update and patch all software and systems to prevent known vulnerabilities.
- Conduct regular security assessments and penetration testing to identify and address weaknesses.
- Stay informed about security advisories and updates from relevant vendors.
Patching and Updates
- Refer to vendor-specific security advisories for patching instructions and updates to address CVE-2018-17206.