Vulnerability identifier: #VU14505

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-14598

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

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

Vendor: X.org

Description

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

The vulnerability exists due to an error when handling malicious input. A remote unauthenticated attacker can cause a remote server to return a specially crafted reply to cause the target X client to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Xlib: 1.0.1 - 1.6.6

---

External links
http://gitlab.freedesktop.org/xorg/lib/libx11/commit/e83722768fd5c467ef61fa159e8c6278770b45c2

---

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.