NULL Pointer Dereference Vulnerability in Qt 6 through 6.6
CVE-2023-45935

4.2MEDIUM

Key Information:

Vendor

Qt

Vendor
CVE Published:
27 March 2024

What is CVE-2023-45935?

A vulnerability has been identified in the Qt framework versions up to 6.6, where a NULL pointer dereference can occur in the function QXcbConnection::initializeAllAtoms(). This issue arises when the X server exhibits anomalous behavior, which should not typically cause an X application to continue running. There are claims surrounding this vulnerability, specifically regarding the expected behavior of applications in the face of X server anomalies, suggesting that standard expectations for application resilience may not hold true in this instance.

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References

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

CVSS V3.1

Score:
4.2
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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