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.
Advisories
Source ID Title
EUVD EUVD EUVD-2017-8972 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.
Fixes

Solution

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Workaround

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T20:59:18.000Z

Reserved: 2017-12-20T00:00:00.000Z

Link: CVE-2017-17821

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2017-12-21T03:29:00.630

Modified: 2025-04-20T01:37:25.860

Link: CVE-2017-17821

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses