VULNERABILITY INTELLIGENCE

CVE-2017-17840

CVSS score7.8 HIGH

EPSS probability0.45%

CISA KEVNot currently listed

Published2017-12-27

Last modified2026-06-17

CVSS vectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

Primary references

cve@mitre.org — Mailing List, Third Party Advisory
cve@mitre.org — Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory