CVE-2023-2603 · cross-distro fix matrix

CVE-2023-2603: A vulnerability was found in libcap. This issue occurs in the _libcap_strdup() function and can lead to an integer overflow if the input string is close to 4GiB.

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

Fix per ecosystem

Each block below is a distro release where CVE-2023-2603 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

libcap2→ fixed in1:2.44-1+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libcap2
```

Debian bookworm

Source: Debian Security Tracker

libcap2→ fixed in1:2.66-4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libcap2
```

Debian trixie

Source: Debian Security Tracker

libcap2→ fixed in1:2.66-4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libcap2
```

Are YOU affected by CVE-2023-2603?

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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