1) Out-of-bounds write

Risk: High

CVSSv3: 7.1 [CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

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, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.2.0, 1.2.1, 1.3.0, 1.3.1, 1.3.2, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.5.0, 1.5.1

CPE

• cpe:/a:maxmind:libmaxminddb:1.5.1:
• cpe:/a:maxmind:libmaxminddb:1.0.0:
• cpe:/a:maxmind:libmaxminddb:1.0.1:
• cpe:/a:maxmind:libmaxminddb:1.0.3:
• cpe:/a:maxmind:libmaxminddb:1.0.4:
• cpe:/a:maxmind:libmaxminddb:1.1.0:
• cpe:/a:maxmind:libmaxminddb:1.1.1:
• cpe:/a:maxmind:libmaxminddb:1.1.2:
• cpe:/a:maxmind:libmaxminddb:1.1.3:
• cpe:/a:maxmind:libmaxminddb:1.5.0:
• cpe:/a:maxmind:libmaxminddb:1.4.3:
• cpe:/a:maxmind:libmaxminddb:1.0.2:
• cpe:/a:maxmind:libmaxminddb:1.1.4:
• cpe:/a:maxmind:libmaxminddb:1.1.5:
• cpe:/a:maxmind:libmaxminddb:1.2.0:
• cpe:/a:maxmind:libmaxminddb:1.2.1:
• cpe:/a:maxmind:libmaxminddb:1.3.0:
• cpe:/a:maxmind:libmaxminddb:1.3.1:
• cpe:/a:maxmind:libmaxminddb:1.3.2:
• cpe:/a:maxmind:libmaxminddb:1.4.0:
• cpe:/a:maxmind:libmaxminddb:1.4.1:
• cpe:/a:maxmind:libmaxminddb:1.4.2:

External links

https://github.com/maxmind/libmaxminddb/releases/tag/1.5.2
https://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.