Out-of-bounds read in MongoDB and libbson - CVE-2017-14227
Published: September 9, 2017 / Updated: December 22, 2020
Vulnerability identifier: #VU38340
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-2017-14227
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in In MongoDB libbson 1.7.0, the bson_iter_codewscope function in bson-iter.c miscalculates a bson_utf8_validate length argument, which. A remote attacker can perform 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.
Affected software
MongoDB
libbson
Fedora
libbson
libbson
Fedora
libbson
How to mitigate CVE-2017-14227
Install update from vendor's website.
libbson - update to 1.8.0
libbson - addressed in versions 1.3.5-4.el7, 1.3.5-4.fc25, 1.6.3-2.fc26, 1.8.0-1.fc27
libbson - addressed in versions 1.3.5-4.el7, 1.3.5-4.fc25, 1.6.3-2.fc26, 1.8.0-1.fc27