CVE-2011-1951 · cross-distro fix matrix

CVE-2011-1951: lib/logmatcher.c in Balabit syslog-ng before 3.2.4, when the global flag is set and when using PCRE 8.12 and possibly other versions, allows remote attackers to cause a denial of service (memory consumption) via a message that does not match a regular expression.

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

Fix per ecosystem

Each block below is a distro release where CVE-2011-1951 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

syslog-ng→ fixed in3.2.4-1urgency: low

sudo apt-get install --only-upgrade -y syslog-ng

Debian bookworm

Source: Debian Security Tracker

syslog-ng→ fixed in3.2.4-1urgency: low

sudo apt-get install --only-upgrade -y syslog-ng

Debian trixie

Source: Debian Security Tracker

syslog-ng→ fixed in3.2.4-1urgency: low

sudo apt-get install --only-upgrade -y syslog-ng

Are YOU affected by CVE-2011-1951?

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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