Bug 1494401 (CVE-2017-14227)

Summary:	CVE-2017-14227 libbson: Heap based buffer over read in the bson_utf8_validate function
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	fedora, ppisar
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:	2019-06-08 03:26:05 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:	1494402, 1489355
Bug Blocks:

Description Andrej Nemec 2017-09-22 08:06:25 UTC

In MongoDB libbson 1.7.0, the bson_iter_codewscope function in bson-iter.c miscalculates a bson_utf8_validate length argument, which allows remote attackers to cause a denial of service (heap-based buffer over-read in the bson_utf8_validate function in bson-utf8.c), as demonstrated by bson-to-json.c.

Upstream issue:

https://jira.mongodb.org/browse/CDRIVER-2269

Upstream patches:

https://github.com/mongodb/libbson/commit/42900956dc461dfe7fb91d93361d10737c1602b3
https://github.com/mongodb/libbson/commit/e10059393466f667b031077229cfa98504ce34f3

Comment 1 Andrej Nemec 2017-09-22 08:06:48 UTC

Created libbson tracking bugs for this issue:

Affects: epel-7 [bug 1494402]

Comment 2 Fedora Update System 2017-09-26 23:54:40 UTC

libbson-1.6.3-2.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.

Comment 3 Fedora Update System 2017-09-27 05:27:29 UTC

libbson-1.3.5-4.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2017-09-30 06:31:28 UTC

libbson-1.8.0-1.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2017-10-09 14:50:14 UTC

libbson-1.3.5-4.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.