Bug 1545046 (CVE-2018-6951)

Summary:	CVE-2018-6951 patch: NULL pointer dereference in pch.c:intuit_diff_type() causes a crash
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	than, twaugh
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A NULL pointer dereference flaw was found in the way patch processed patch files. An attacker could potentially use this flaw to crash patch by tricking it into processing crafted patches.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:39:56 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:	1545047, 1554750
Bug Blocks:	1545055

Description Sam Fowler 2018-02-14 06:58:09 UTC

GNU patch through version 2.7.6 in pch.c:intuit_diff_type() is vulnerable to a crash caused by malicious patch file.

Upstream Issue:

https://savannah.gnu.org/bugs/index.php?53132

Upstream Patch:

https://git.savannah.gnu.org/cgit/patch.git/commit/?id=f290f48a621867084884bfff87f8093c15195e6a

Comment 1 Sam Fowler 2018-02-14 06:58:33 UTC

Created patch tracking bugs for this issue:

Affects: fedora-all [bug 1545047]