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

Vulnerability identifier: #VU85419

CSH Severity: Medium

CVSS v4: 8.7 [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]

CVE-ID: CVE-2023-0437

CWE-ID: CWE-835

Exploitation vector: Remote access

Exploit availability: No public exploit available

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.

MongoDB driver for C
Fedora
openEuler
mongo-c-driver
libbson
mongo-c-driver-help
mongo-c-driver-debuginfo
libbson-devel
mongo-c-driver-debugsource
mongo-c-driver-devel

Install updates from vendor's website.

MongoDB driver for C - update to 1.25.0
mongo-c-driver - update to 1.13.1-4
libbson - update to 1.13.1-4
mongo-c-driver-help - update to 1.13.1-4
mongo-c-driver-debuginfo - update to 1.13.1-4
libbson-devel - update to 1.13.1-4
mongo-c-driver-debugsource - update to 1.13.1-4
mongo-c-driver-devel - update to 1.13.1-4
mongo-c-driver - addressed in versions 1.24.3-2.el8, 1.24.3-2.el9, 1.24.3-2.fc38

• https://jira.mongodb.org/browse/CDRIVER-4747

• Denial of service in MongoDB driver for C
• Fedora EPEL 8 update for mongo-c-driver
• Fedora 38 update for mongo-c-driver
• Fedora EPEL 9 update for mongo-c-driver
• openEuler update for mongo-c-driver