An issue was discovered in Open-iSCSI through 2.0.875.
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:open-iscsi_project:open-iscsi:*:*:*:*:*:*:*:* | up to 2.0.875 | Vulnerable | Open-iscsi Project |
- cpe:2.3:a:open-iscsi_project:open-iscsi:*:*:*:*:*:*:*:* Versions up to 2.0.875 Vulnerable ·Open-iscsi Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
Not affected: 1 product
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2017-17840
- 2026-10-03 Alias added: GHSA-2mfv-hhmv-9rh8
References
More Open-iscsi Project Open-iscsi vulnerabilities
- TI-2020-13203 An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. CVSS 3.1HIGH 8.2
- TI-2020-10956 An issue was discovered in Contiki through 3.0. CVSS 3.1HIGH 7.5
Sources
- CVE-2017-17840 · CVE Program
- CVE-2017-17840 · NVD
- FIRST EPSS
- GHSA-2mfv-hhmv-9rh8 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-17840 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences