CVE-2017-17821

NameCVE-2017-17821
DescriptionWTF/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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
webkit2gtk (PTS)bullseye2.44.2-1~deb11u1fixed
bullseye (security)2.44.3-1~deb11u1fixed
bookworm2.44.2-1~deb12u1fixed
bookworm (security)2.44.3-1~deb12u1fixed
trixie2.46.0-2fixed
sid2.46.1-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
webkit2gtksource(unstable)2.22.0-2unimportant

Notes

https://bugs.webkit.org/show_bug.cgi?id=181020 (not public)
Not covered by security support

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