Use-after-free in WebKitGTK+ - CVE-2018-12294
Published: August 22, 2018 / Updated: August 23, 2018
Vulnerability identifier: #VU14500
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2018-12294
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: WebKitGTK
Affected software:
WebKitGTK+
WebKitGTK+
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists in WebCore/platform/graphics/texmap/TextureMapperLayer.cpp due to use-after-free error when handling malicious input. A remote unauthenticated attacker can trick the victim into opening a specially crafted WebCore::TextureMapperLayer object, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2018-12294
Update to version 2.20.2.