CVE-2017-14227 : In MongoDB libbson 1.7.0, the bson_iter_codewscope function in bson-iter.c miscalculates a bson_utf8

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.

Published 2017-09-09 08:29:00

Updated 2019-10-03 00:03:26

Source MITRE

View at NVD, CVE.org

Vulnerability category: Denial of service

Threat overview for CVE-2017-14227

Top countries where our scanners detected CVE-2017-14227

Top open port discovered on systems with this issue 49153

IPs affected by CVE-2017-14227 2

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2017-14227!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2017-14227

Probability of exploitation activity in the next 30 days: 0.74%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 78 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2017-14227

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2017-14227

CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2017-14227

https://bugzilla.redhat.com/show_bug.cgi?id=1489362

1489362 – There is a heap-based buffer overflow in bson-to-json.c.
Issue Tracking;Third Party Advisory
http://www.securityfocus.com/bid/100825

MongoDB libbson CVE-2017-14227 Heap Buffer Overflow Vulnerability
Third Party Advisory;VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1489355

1489355 – There is a heap-buffer-overflow in bson_utf8_validate() function of libbson.
Issue Tracking;Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1489356

1489356 – There is a heap-buffer-overflow in bson_utf8_validate() function of libbson.
Issue Tracking;Third Party Advisory

Products affected by CVE-2017-14227