CVE-2009-1755 · cross-distro fix matrix

CVE-2009-1755: Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and process_query_section in query.c in nsd 2.3.7, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors that trigger a buffer overflow.

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

Fix per ecosystem

Each block below is a distro release where CVE-2009-1755 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

nsd→ fixed in2.3.7-3urgency: medium

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

Debian bookworm

Source: Debian Security Tracker

nsd→ fixed in2.3.7-3urgency: medium

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

Debian trixie

Source: Debian Security Tracker

nsd→ fixed in2.3.7-3urgency: medium

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

Are YOU affected by CVE-2009-1755?

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

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