Bug 1542817 (CVE-2018-6758)

Summary:	CVE-2018-6758 uwsgi: Stack-based buffer overflow in core/utils.c:uwsgi_expand_path() can lead to crash and potential code execution
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	carl, kad, tadej.j
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:	2018-07-09 04:22:04 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:	1542818, 1542819
Bug Blocks:

Description Sam Fowler 2018-02-07 04:49:13 UTC

The uwsgi_expand_path() function in core/utils.c in Unbit uWSGI through 2.0.15 has a stack-based buffer overflow via a large directory length. A remote attacker could exploit this to cause a crash or potential arbitrary code execution.


External References:

http://lists.unbit.it/pipermail/uwsgi/2018-February/008835.html


Upstream Fix:

https://github.com/unbit/uwsgi/commit/cb4636f7c0af2e97a4eef7a3cdcbd85a71247bfe

Comment 1 Sam Fowler 2018-02-07 04:49:44 UTC

Created uwsgi tracking bugs for this issue:

Affects: epel-all [bug 1542819]
Affects: fedora-all [bug 1542818]