CVE-2011-4623 · cross-distro fix matrix

CVE-2011-4623: Integer overflow in the rsCStrExtendBuf function in runtime/stringbuf.c in the imfile module in rsyslog 4.x before 4.6.6, 5.x before 5.7.4, and 6.x before 6.1.4 allows local users to cause a denial of service (daemon hang) via a large file, which triggers a heap-based buffer overflow.

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

Fix per ecosystem

Each block below is a distro release where CVE-2011-4623 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

rsyslog→ fixed in5.7.4-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y rsyslog
```

Debian bookworm

Source: Debian Security Tracker

rsyslog→ fixed in5.7.4-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y rsyslog
```

Debian trixie

Source: Debian Security Tracker

rsyslog→ fixed in5.7.4-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y rsyslog
```

Are YOU affected by CVE-2011-4623?

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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