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Out-of-Bounds Affecting webkit2gtk package, versions <2.22.0-2

low

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.58% (78th percentile)
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NVD
9.8 critical

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  • Snyk ID SNYK-DEBIAN12-WEBKIT2GTK-1562183
  • published 21 Dec 2017
  • disclosed 21 Dec 2017
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Introduced: 21 Dec 2017

CVE-2017-17821 Open this link in a new tab
CWE-119 Open this link in a new tab

How to fix?

Upgrade Debian:12 webkit2gtk to version 2.22.0-2 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:12 relevant fixed versions and status.

WTF/wtf/FastBitVector.h in WebKit, as distributed in Safari Technology Preview Release 46, allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact because it calls the FastBitVectorWordOwner::resizeSlow function (in WTF/wtf/FastBitVector.cpp) for a purpose other than initializing a bitvector size, and resizeSlow mishandles cases where the old array length is greater than the new array length.