CVE-2017-17821 · cross-distro fix matrix

CVE-2017-17821: 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)

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2017-17821 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

webkit2gtk→ fixed in2.22.0-2urgency: unimportant

sudo apt-get install --only-upgrade -y webkit2gtk

Debian bookworm

Source: Debian Security Tracker

webkit2gtk→ fixed in2.22.0-2urgency: unimportant

sudo apt-get install --only-upgrade -y webkit2gtk

Debian trixie

Source: Debian Security Tracker

webkit2gtk→ fixed in2.22.0-2urgency: unimportant

sudo apt-get install --only-upgrade -y webkit2gtk

Are YOU affected by CVE-2017-17821?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

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