Debian bullseye
Source: Debian Security Tracker
wireshark→ fixed in3.4.16-0+deb11u1urgency: not yet assignedsudo apt-get install --only-upgrade -y wireshark
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CVE-2021-4185 · cross-distro fix matrix
CVE-2021-4185: Infinite loop in the RTMPT dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file
Affects 8 Linux releases across 8 (distro × package) combinations.
Fix per ecosystem
Each block below is a distro release where CVE-2021-4185 has a known fix. Run the listed command on that distro to remediate.
Debian bookworm
Source: Debian Security Tracker
wireshark→ fixed in3.6.2-1urgency: not yet assignedsudo apt-get install --only-upgrade -y wireshark
Debian trixie
Source: Debian Security Tracker
wireshark→ fixed in3.6.2-1urgency: not yet assignedsudo apt-get install --only-upgrade -y wireshark
Alpine v3.20
Source: Alpine secdb
wireshark→ fixed in3.4.11-r0apk update && apk add --upgrade wireshark
Alpine v3.21
Source: Alpine secdb
wireshark→ fixed in3.4.11-r0apk update && apk add --upgrade wireshark
Alpine edge
Source: Alpine secdb
wireshark→ fixed in3.4.11-r0apk update && apk add --upgrade wireshark
Alpine v3.18
Source: Alpine secdb
wireshark→ fixed in3.4.11-r0apk update && apk add --upgrade wireshark
Alpine v3.19
Source: Alpine secdb
wireshark→ fixed in3.4.11-r0apk update && apk add --upgrade wireshark
Are YOU affected by CVE-2021-4185?
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.
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