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CVE-2018-12293

Date: June 19, 2018

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.

Severity Score

Related Resources (10)

https://security.gentoo.org/glsa/201808-04
https://trac.webkit.org/changeset/232618
https://usn.ubuntu.com/3687-1/
https://nvd.nist.gov/vuln/detail/CVE-2018-12293
http://www.securityfocus.com/archive/1/542087/100/0/threaded
http://www.openwall.com/lists/oss-security/2018/06/14/1
https://www.exploit-db.com/exploits/45205/
https://bugs.webkit.org/show_bug.cgi?id=186384
http://packetstormsecurity.com/files/148200/WebKitGTK-Data-Leak-Code-Execution.html
https://www.mend.io/vulnerability-database/CVE-2018-12293

Severity Score

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

Out-of-bounds Write

CWE-787

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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