Bug 1529176 (CVE-2017-17840)

Summary:	CVE-2017-17840 iscsi-initiator-utils: Heap-based buffer overflow in process_iscsid_broadcast()
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	agrover, cleech, coughlan, mchristi
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-01-09 13:47:44 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1529177, 1910573
Bug Blocks:	1524601

Description Pedro Sampaio 2017-12-26 21:47:38 UTC

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.

Upstream patch:

https://github.com/open-iscsi/open-iscsi/pull/72

Comment 1 Pedro Sampaio 2017-12-26 21:48:11 UTC

Created iscsi-initiator-utils tracking bugs for this issue:

Affects: fedora-all [bug 1529177]

Comment 2 Raphael Sanchez Prudencio 2018-01-09 13:54:11 UTC

Statement:

Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.