Qt up to 5.15.14/6.2.8/6.5.0 SVG File QTextLayout buffer overflow

Summaryinfo

A vulnerability, which was classified as critical, has been found in Qt up to 5.15.14/6.2.8/6.5.0. Affected is the function QTextLayout of the component SVG File Handler. This manipulation causes buffer overflow. The identification of this vulnerability is CVE-2023-32763. The attack can only be executed locally. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Qt up to 5.15.14/6.2.8/6.5.0. It has been declared as critical. Affected by this vulnerability is the function QTextLayout of the component SVG File Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. When a SVG file with an image inside it is rendered, a QTextLayout buffer overflow can be triggered.

The weakness was shared 05/29/2023. It is possible to read the advisory at codereview.qt-project.org. This vulnerability is known as CVE-2023-32763 since 05/15/2023. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 212010 (F5 Networks BIG-IP : Qt vulnerabilities (K000148809)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.15.15, 6.2.9 or 6.5.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (212010). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• Qt

Version

• 5.15.0
• 5.15.1
• 5.15.2
• 5.15.3
• 5.15.4
• 5.15.5
• 5.15.6
• 5.15.7
• 5.15.8
• 5.15.9
• 5.15.10
• 5.15.11
• 5.15.12
• 5.15.13
• 5.15.14
• 6.0
• 6.1
• 6.2
• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 6.2.4
• 6.2.5
• 6.2.6
• 6.2.7
• 6.2.8
• 6.3
• 6.4
• 6.5.0

License

• open-source

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Be aware that VulDB is the high quality source for vulnerability data.

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