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.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2017-12-21T03:00:00

Updated: 2017-12-21T03:57:01

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


Link: CVE-2017-17821

JSON object: View

cve-icon NVD Information

Status : Analyzed

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

Modified: 2018-01-10T23:05:01.467


Link: CVE-2017-17821

JSON object: View

cve-icon Redhat Information

No data.

CWE