Bug 1794143 (CVE-2019-15601)

Summary:	CVE-2019-15601 curl: improper input validation allows users to create a 'FILE:' URL that can make the client access a remote file using SMB
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	andrew.slice, apmukher, bodavis, csutherl, dbhole, erik-fedora, gzaronik, hhorak, jclere, john.j5live, jorton, jwon, kanderso, kdudka, krathod, lgao, luhliari, lvaleeva, mbabacek, mike, msekleta, mturk, myarboro, omajid, paul, pjindal, plodge, rwagner, szappis, weli
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:	[REJECTED CVE] A vulnerability has been identified in libcurl, where a FILE:// URL crafted with two slashes (or backslashes) followed by a hostname can cause Windows systems to treat the path as an SMB request instead of accessing a local file. This unintended behavior may allow an attacker to redirect file access requests to a malicious SMB server. Applications that allow user-provided URLs or URL parts are particularly vulnerable, potentially exposing sensitive data or enabling unauthorized network interactions.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-02-04 18:59:31 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:
Bug Blocks:	1794144

Description Guilherme de Almeida Suckevicz 2020-01-22 18:47:27 UTC

CURL before 7.68.0 lacks proper input validation, which allows users to create a `FILE:` URL that can make the client access a remote file using SMB (Windows-only issue).

Reference:
https://www.openwall.com/lists/oss-security/2020/01/08/1

Upstream commit:
https://github.com/curl/curl/commit/1b71bc532bde8621fd3260843f8197182a467ff2

Comment 1 Marco Benatto 2020-02-04 18:59:31 UTC

As stated at https://www.openwall.com/lists/oss-security/2020/01/08/1 this issue affects only Windows.
Closing this as NOTABUG.