CVE-2008-6123 · cross-distro fix matrix

CVE-2008-6123: The netsnmp_udp_fmtaddr function (snmplib/snmpUDPDomain.c) in net-snmp 5.0.9 through 5.4.2.1, when using TCP wrappers for client authorization, does not properly parse hosts.allow rules, which allows remote attackers to bypass intended access restrictions and execute SNMP queries, related to "source

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

Fix per ecosystem

Each block below is a distro release where CVE-2008-6123 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

net-snmp→ fixed in5.4.3~dfsg-1urgency: low

sudo apt-get install --only-upgrade -y net-snmp

Debian bookworm

Source: Debian Security Tracker

net-snmp→ fixed in5.4.3~dfsg-1urgency: low

sudo apt-get install --only-upgrade -y net-snmp

Debian trixie

Source: Debian Security Tracker

net-snmp→ fixed in5.4.3~dfsg-1urgency: low

sudo apt-get install --only-upgrade -y net-snmp

Are YOU affected by CVE-2008-6123?

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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