Bug 1222027 (CVE-2015-0847)

Summary:	CVE-2015-0847 nbd: nbd-server denial of service due to unsafe signal handlers
Product:	[Other] Security Response	Reporter:	Fabio Olive Leite <fleite>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	enslaver, i, wtogami, xjakub
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 02:41:16 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:	1222028, 1222029, 1222030
Bug Blocks:

Description Fabio Olive Leite 2015-05-15 14:18:26 UTC

It was reported that nbd-server in the nbd package does unsafe signal
handling, calling non-reentrant operations from signal handlers and
therefore risking undefined operation and crashes.

References:
http://sourceforge.net/p/nbd/mailman/message/34091218/

Comment 1 Fabio Olive Leite 2015-05-15 14:19:16 UTC

Created nbd tracking bugs for this issue:

Affects: fedora-all [bug 1222028]
Affects: epel-6 [bug 1222029]
Affects: epel-7 [bug 1222030]

Comment 2 Fedora Update System 2015-08-13 16:54:31 UTC

nbd-3.11-1.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 3 Fedora Update System 2015-08-13 16:55:59 UTC

nbd-3.11-1.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2015-08-22 19:25:28 UTC

nbd-3.11-1.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.

Comment 5 Product Security DevOps Team 2019-06-08 02:41:16 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.