openEuler 20.03 LTS SP3 update for qt5-qtbase

1) Out-of-bounds write

EUVDB-ID: #VU66867

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38593

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when rendering SVG file within in QOutlineMapper::convertPath. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger out-of-bounds write and crash the application.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

qt5-qtbase-common: before 5.11.1-13

qt5-qtbase-gui: before 5.11.1-13

qt5-qtbase-mysql: before 5.11.1-13

qt5-qtbase-postgresql: before 5.11.1-13

qt5-qtbase-debuginfo: before 5.11.1-13

qt5-qtbase-odbc: before 5.11.1-13

qt5-qtbase-debugsource: before 5.11.1-13

qt5-qtbase-devel: before 5.11.1-13

qt5-qtbase: before 5.11.1-13

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2059

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.