Remote code execution in libmaxminddb

1) Out-of-bounds write

EUVDB-ID: #VU50811

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in libmaxminddb on Windows and mmdblookup. A remote attacker can pass specially crafted data to the application, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

libmaxminddb: 1.0.0 - 1.5.1

External links

http://github.com/maxmind/libmaxminddb/releases/tag/1.5.2
http://github.com/maxmind/libmaxminddb/issues/252

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.