A vulnerability was found in WebkitGTK+ up to 2.22.6/2.23.90 (Web Browser). It has been declared as critical. Affected by this vulnerability is an unknown part of the file UIProcess/API/gtk/WebKitScriptDialogGtk.cpp of the component UIProcess Subsystem. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The UIProcess subsystem in WebKit, as used in WebKitGTK through 2.23.90 and WebKitGTK+ through 2.22.6 and other products, does not prevent the script dialog size from exceeding the web view size, which allows remote attackers to cause a denial of service (Buffer Overflow) or possibly have unspecified other impact, related to UIProcess/API/gtk/WebKitScriptDialogGtk.cpp, UIProcess/API/gtk/WebKitScriptDialogImpl.cpp, and UIProcess/API/gtk/WebKitWebViewGtk.cpp, as demonstrated by GNOME Web (aka Epiphany).

The bug was discovered 04/01/2019. The weakness was published 02/24/2019 (Website). It is possible to read the advisory at exploit-db.com. This vulnerability is known as CVE-2019-8375 since 02/16/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 commercial vulnerability scanner Qualys is able to test this issue with plugin 197431 (Ubuntu Security Notification for Webkit2gtk Vulnerabilities (USN-3948-1)).

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

Productinfo

Type

• Web Browser

Name

• WebkitGTK+

Version

• 2.22.0
• 2.22.1
• 2.22.2
• 2.22.3
• 2.22.4
• 2.22.5
• 2.22.6
• 2.23.0
• 2.23.1
• 2.23.2
• 2.23.3
• 2.23.4
• 2.23.5
• 2.23.6
• 2.23.7
• 2.23.8
• 2.23.9
• 2.23.10
• 2.23.11
• 2.23.12
• 2.23.13
• 2.23.14
• 2.23.15
• 2.23.16
• 2.23.17
• 2.23.18
• 2.23.19
• 2.23.20
• 2.23.21
• 2.23.22
• 2.23.23
• 2.23.24
• 2.23.25
• 2.23.26
• 2.23.27
• 2.23.28
• 2.23.29
• 2.23.30
• 2.23.31
• 2.23.32
• 2.23.33
• 2.23.34
• 2.23.35
• 2.23.36
• 2.23.37
• 2.23.38
• 2.23.39
• 2.23.40
• 2.23.41
• 2.23.42
• 2.23.43
• 2.23.44
• 2.23.45
• 2.23.46
• 2.23.47
• 2.23.48
• 2.23.49
• 2.23.50
• 2.23.51
• 2.23.52
• 2.23.53
• 2.23.54
• 2.23.55
• 2.23.56
• 2.23.57
• 2.23.58
• 2.23.59
• 2.23.60
• 2.23.61
• 2.23.62
• 2.23.63
• 2.23.64
• 2.23.65
• 2.23.66
• 2.23.67
• 2.23.68
• 2.23.69
• 2.23.70
• 2.23.71
• 2.23.72
• 2.23.73
• 2.23.74
• 2.23.75
• 2.23.76
• 2.23.77
• 2.23.78
• 2.23.79
• 2.23.80
• 2.23.81
• 2.23.82
• 2.23.83
• 2.23.84
• 2.23.85
• 2.23.86
• 2.23.87
• 2.23.88
• 2.23.89
• 2.23.90

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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