bson/_cbsonmodule.c in the mongo-python-driver (aka. pymongo) before 2.5.2, as used in MongoDB, allows context-dependent attackers to cause a denial of service (NULL pointer dereference and crash) via vectors related to decoding of an "invalid DBRef."
https://jira.mongodb.org/browse/PYTHON-532
http://www.securityfocus.com/bid/60252
http://www.debian.org/security/2013/dsa-2705
http://ubuntu.com/usn/usn-1897-1
http://seclists.org/oss-sec/2013/q2/447
http://lists.opensuse.org/opensuse-updates/2013-06/msg00180.html
Published: 2013-08-15
Updated: 2025-04-11
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P
Severity: Medium
Base Score: 4.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Severity: Medium
Base Score: 6.9
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Severity: Medium
EPSS: 0.02228