Out-of-bounds read in qt5-qtbase

1) Out-of-bounds read

EUVDB-ID: #VU46199

Risk: Medium

CVSSv3.1: 4.9 [AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-17507

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to buffer over-read. A remote attacker can perform a denial of service attack.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

qt5-qtbase: 5.15.0

External links

http://codereview.qt-project.org/c/qt/qtbase/+/308436
http://codereview.qt-project.org/c/qt/qtbase/+/308495
http://codereview.qt-project.org/c/qt/qtbase/+/308496
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/426FCC6JNK4JUEX5QHJQDYQ6MUVQ3E6P/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NBPZVZNEYXGATTXM4WOE7OQ55VAKPVD6/

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.