CVE-2018-12293

The getImageData function in the ImageBufferCairo class in WebCore/platform/graphics/cairo/ImageBufferCairo.cpp in WebKit, as used in WebKitGTK+ prior to version 2.20.3 and WPE WebKit prior to version 2.20.1, is vulnerable to a heap-based buffer overflow triggered by an integer overflow, which could be abused by crafted HTML content.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector : AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://usn.ubuntu.com/3687-1/	Third Party Advisory
https://trac.webkit.org/changeset/232618	Patch Third Party Advisory Vendor Advisory
https://bugs.webkit.org/show_bug.cgi?id=186384	Permissions Required Vendor Advisory
http://www.openwall.com/lists/oss-security/2018/06/14/1	Mailing List Technical Description
http://packetstormsecurity.com/files/148200/WebKitGTK-Data-Leak-Code-Execution.html	Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/45205/
http://www.securityfocus.com/archive/1/542087/100/0/threaded
https://security.gentoo.org/glsa/201808-04

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:17.10:::::::*

Configuration 2 (hide)

cpe:2.3:a:webkitgtk:webkitgtk\+:*:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:a:wpewebkit:wpe_webkit:*:*:*:*:*:*:*:*

Information

Published : 2018-06-19 14:29

Updated : 2020-08-24 10:37

NVD link : CVE-2018-12293

Mitre link : CVE-2018-12293

JSON object : View

CWE

CWE-787

Out-of-bounds Write

CWE-190

Integer Overflow or Wraparound

Products Affected

webkitgtk

webkitgtk\+

canonical

ubuntu_linux

wpewebkit

wpe_webkit

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8.8 /10