CVE-2017-17840
7.8 · HIGHOverview
CVE-2017-17840 is a high-severity vulnerability affecting open-iscsi_project open-iscsi. It was published on December 27, 2017 and has a CVSS 3.0 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.0 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
An issue was discovered in Open-iSCSI through 2.0.875. A local attacker can cause the iscsiuio server to abort or potentially execute code by sending messages with incorrect lengths, which (due to lack of checking) can lead to buffer overflows, and result in aborts (with overflow checking enabled) or code execution. The process_iscsid_broadcast function in iscsiuio/src/unix/iscsid_ipc.c does not validate the payload length before a write operation.
Remediation
Check the references section for vendor advisories and patches from open-iscsi_project. Update open-iscsi to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| open-iscsi_project | open-iscsi | 0 | Affected |
Frequently Asked Questions
What is CVE-2017-17840?
CVE-2017-17840 is a high-severity vulnerability affecting open-iscsi_project open-iscsi. It was published on December 27, 2017 and has a CVSS 3.0 base score of 7.8 (HIGH).
How severe is CVE-2017-17840?
This vulnerability has a CVSS 3.0 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2017-17840?
Check the references section for vendor advisories and patches from open-iscsi_project. Update open-iscsi to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2017-17840?
CyberStrike's AI-powered security agents can automatically detect CVE-2017-17840 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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