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CVE-2020-10995 · cross-distro fix matrix

CVE-2020-10995: PowerDNS Recursor from 4.1.0 up to and including 4.3.0 does not sufficiently defend against amplification attacks. An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafted reply

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-10995 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • pdns-recursor→ fixed in4.3.1-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y pdns-recursor

Debian bookworm

Source: Debian Security Tracker

  • pdns-recursor→ fixed in4.3.1-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y pdns-recursor

Debian trixie

Source: Debian Security Tracker

  • pdns-recursor→ fixed in4.3.1-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y pdns-recursor

Alpine v3.20

Source: Alpine secdb

  • pdns-recursor→ fixed in4.3.1-r0
    apk update && apk add --upgrade pdns-recursor

Alpine v3.21

Source: Alpine secdb

  • pdns-recursor→ fixed in4.3.1-r0
    apk update && apk add --upgrade pdns-recursor

Alpine edge

Source: Alpine secdb

  • pdns-recursor→ fixed in4.3.1-r0
    apk update && apk add --upgrade pdns-recursor

Alpine v3.18

Source: Alpine secdb

  • pdns-recursor→ fixed in4.3.1-r0
    apk update && apk add --upgrade pdns-recursor

Alpine v3.19

Source: Alpine secdb

  • pdns-recursor→ fixed in4.3.1-r0
    apk update && apk add --upgrade pdns-recursor
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