#VU85419 Infinite loop in MongoDB driver for C - CVE-2023-0437

Vulnerability identifier: #VU85419

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-0437

CWE-ID: CWE-835

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 infinite loop when calling the bson_utf8_validate() function on some inputs. A remote attacker can consume all available system resources and cause denial of service conditions.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MongoDB driver for C: 1.0.0 - 1.24.4

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External links
https://jira.mongodb.org/browse/CDRIVER-4747

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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