Vulnerability identifier: #VU31889
Vulnerability risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-416
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Qt
Universal components / Libraries /
Scripting languages
Vendor: Trolltech
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in setMarkdown. A remote attacker can execute arbitrary code with the privileges of the process, or cause a denial of service (DoS) condition.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Qt: 5.14.0 - 5.14.1
External links
http://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450
http://codereview.qt-project.org/c/qt/qtbase/+/291706
http://security.gentoo.org/glsa/202007-38
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.