Vulnerability identifier: #VU10374

Vulnerability risk: Low

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-2018-6197

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
w3m
Server applications / Web servers

Vendor: w3m.sourceforge.net

Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to NULL pointer dereference flaw in formUpdateBuffer in form.c. A remote attacker can cause the service to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

w3m: 0.5.3

---

External links
http://github.com/tats/w3m/issues/89

---

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.