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CVE-2018-16855 · cross-distro fix matrix

CVE-2018-16855: An issue has been found in PowerDNS Recursor before version 4.1.8 where a remote attacker sending a DNS query can trigger an out-of-bounds memory read while computing the hash of the query for a packet cache lookup, possibly leading to a crash.

Affects 8 Linux releases across 8 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2018-16855 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • pdns-recursor→ fixed in4.1.8-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y pdns-recursor

Debian bookworm

Source: Debian Security Tracker

  • pdns-recursor→ fixed in4.1.8-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y pdns-recursor

Debian trixie

Source: Debian Security Tracker

  • pdns-recursor→ fixed in4.1.8-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y pdns-recursor

Alpine v3.20

Source: Alpine secdb

  • pdns-recursor→ fixed in4.1.8-r0
    apk update && apk add --upgrade pdns-recursor

Alpine v3.21

Source: Alpine secdb

  • pdns-recursor→ fixed in4.1.8-r0
    apk update && apk add --upgrade pdns-recursor

Alpine edge

Source: Alpine secdb

  • pdns-recursor→ fixed in4.1.8-r0
    apk update && apk add --upgrade pdns-recursor

Alpine v3.18

Source: Alpine secdb

  • pdns-recursor→ fixed in4.1.8-r0
    apk update && apk add --upgrade pdns-recursor

Alpine v3.19

Source: Alpine secdb

  • pdns-recursor→ fixed in4.1.8-r0
    apk update && apk add --upgrade pdns-recursor
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