Bug 1457675 (CVE-2017-9334)

Summary:	CVE-2017-9334 chicken: Unsafe pointer dereference due to incorrect pair? check in Scheme "length" procedure
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	relrod
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	chicken 4.13	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:13:53 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:	1457676, 1457677
Bug Blocks:

Description Adam Mariš 2017-06-01 06:52:33 UTC

An incorrect "pair?" check in the Scheme "length" procedure results in an unsafe pointer dereference in all CHICKEN Scheme versions prior to 4.13, which allows an attacker to cause a denial of service by passing an improper list to an application that calls "length" on it.

Reference:

https://lists.nongnu.org/archive/html/chicken-hackers/2017-05/msg00099.html

Comment 1 Adam Mariš 2017-06-01 06:53:02 UTC

Created chicken tracking bugs for this issue:

Affects: epel-all [bug 1457677]
Affects: fedora-all [bug 1457676]

Comment 2 Product Security DevOps Team 2019-06-08 03:13:53 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.