#VU31208 Stack-based buffer overflow in Mgetty+Sendfax - CVE-2018-16742

Vulnerability identifier: #VU31208

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-16742

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mgetty+Sendfax
Client/Desktop applications / Other client software

Vendor: EDV-Beratung Gert Döring

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing a command-line parameter. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Update to version 1.2.1.

Vulnerable software versions

Mgetty+Sendfax: 1.2.0

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External links
https://www.x41-dsec.de/lab/advisories/x41-2018-007-mgetty

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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.