Vulnerability identifier: #VU15935

Vulnerability risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-19211

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ncurses
Universal components / Libraries / Libraries used by multiple products

Vendor:

Description

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

The vulnerability exists due to NULL pointer dereference condition in the _nc_write_entry function when handling maliciou input. A remote attacker can trick the victim into opening a specially crafted file that submits malicious input, trigger a NULL pointer dereference condition and cause the service to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

---

External links
http://bugzilla.redhat.com/show_bug.cgi?id=1643754

---

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. However, proof of concept for this vulnerability is available.