#VU15060 Buffer over-read in MongoDB driver for C - CVE-2018-16790

Vulnerability identifier: #VU15060

Vulnerability risk: Low

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-16790

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MongoDB driver for C
Universal components / Libraries / Libraries used by multiple products

Vendor: MongoDB, Inc.

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to heap-based buffer over-read via a specially crafted bson buffer within the bson-iter.c file (libbson library). A remote attacker can perform a denial of service attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

MongoDB driver for C: 1.12.0

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=1627923#c3
https://github.com/mongodb/mongo-c-driver/commit/0d9a4d98bfdf4acd2c0138d4aaeb4e2e0934bd84
https://jira.mongodb.org/browse/CDRIVER-2819

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.