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Out-of-bounds Write Affecting webkit2gtk package, versions <2.20.3-1

low

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    Exploit Maturity Mature
    EPSS 61.97% (98th percentile)
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NVD
8.8 high

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  • Snyk ID SNYK-DEBIAN11-WEBKIT2GTK-521598
  • published 19 Jun 2018
  • disclosed 19 Jun 2018
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Introduced: 19 Jun 2018

CVE-2018-12293 Open this link in a new tab
CWE-787 Open this link in a new tab
CWE-190 Open this link in a new tab

How to fix?

Upgrade Debian:11 webkit2gtk to version 2.20.3-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream webkit2gtk package and not the webkit2gtk package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.