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CVE-2017-17840

Published: 27 December 2017

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.

Notes

AuthorNote
ratliff
iscsiuio is not built on xenial, zesty, not present in trusty
mdeslaur
iscsiuio package is in universe

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
open-iscsi
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Not vulnerable
(2.0.874-5ubuntu2.3)
cosmic Not vulnerable
(2.0.874-5ubuntu2.3)
trusty Not vulnerable

upstream
Released (2.0.874-5)
xenial Not vulnerable

zesty Not vulnerable

Binaries built from this source package are in Universe and so are supported by the community.

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H