Out-of-bounds read in Valenok Mongoose

1) Out-of-bounds read

EUVDB-ID: #VU37019

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-10945

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in The mg_handle_cgi function in mongoose.c in Mongoose 6.11. A remote attacker can perform a denial of service (heap-based buffer over-read and application crash, or NULL pointer dereference) via an HTTP request, related to the mbuf_insert function.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Mongoose: 6.11

External links

http://blog.hac425.top/2018/05/16/CVE-2018-10945-mongoose.html

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.