Local denial of service in qt5-qtbase



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-45935
CWE-ID CWE-476
Exploitation vector Local
Public exploit N/A
Vulnerable software
 qt5-qtbase
Other software / Other software solutions

Vendor Qt Group

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) NULL pointer dereference

EUVDB-ID: #VU89359

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-45935

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the QXcbConnection::initializeAllAtoms(). A local user can crash the application.

Mitigation

Install update from vendor's website.

Vulnerable software versions

qt5-qtbase: 6.0.0 - 6.5.2

CPE2.3 External links

https://bugreports.qt.io/browse/QTBUG-115599
https://seclists.org/fulldisclosure/2024/Jan/61


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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