WebKitGTK up to 2.36.0 TextureMapperLayer.cpp setContentsLayer heap-based overflow

Summaryinfo

A vulnerability identified as critical has been detected in WebKitGTK up to 2.36.0. Affected is the function WebCore::TextureMapperLayer::setContentsLayer of the file WebCore/platform/graphics/texmap/TextureMapperLayer.cpp. The manipulation leads to heap-based overflow. This vulnerability is uniquely identified as CVE-2022-30293. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in WebKitGTK up to 2.36.0 (Web Browser). It has been rated as critical. This issue affects the function WebCore::TextureMapperLayer::setContentsLayer of the file WebCore/platform/graphics/texmap/TextureMapperLayer.cpp. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 05/06/2022. It is possible to read the advisory at bugs.webkit.org. The identification of this vulnerability is CVE-2022-30293 since 05/06/2022. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/30/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2022-2044). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

• Amazon Linux 2
• Red Hat Enterprise Linux
• Oracle Linux
• Red Hat OpenShift
• Gentoo Linux
• RESF Rocky Linux

Productinfo

Type

• Web Browser

Name

• WebKitGTK

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14
• 2.15
• 2.16
• 2.17
• 2.18
• 2.19
• 2.20
• 2.21
• 2.22
• 2.23
• 2.24
• 2.25
• 2.26
• 2.27
• 2.28
• 2.29
• 2.30
• 2.31
• 2.32
• 2.33
• 2.34
• 2.35
• 2.36.0

CPE 2.3info

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CPE 2.2info

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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