CVE-2018-9127 · cross-distro fix matrix

CVE-2018-9127: Botan 2.2.0 - 2.4.0 (fixed in 2.5.0) improperly handled wildcard certificates and could accept certain certificates as valid for hostnames when, under RFC 6125 rules, they should not match. This only affects certificates issued to the same domain as the host, so to impersonate a host one must alread

Affects 7 Linux releases across 7 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2018-9127 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

botan→ fixed in2.4.0-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y botan
```

Debian bookworm

Source: Debian Security Tracker

botan→ fixed in2.4.0-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y botan
```

Debian trixie

Source: Debian Security Tracker

botan→ fixed in2.4.0-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y botan
```

Alpine v3.20

Source: Alpine secdb

botan→ fixed in2.5.0-r0
```
apk update && apk add --upgrade botan
```

Alpine v3.21

Source: Alpine secdb

botan→ fixed in2.5.0-r0
```
apk update && apk add --upgrade botan
```

Alpine v3.18

Source: Alpine secdb

botan→ fixed in2.5.0-r0
```
apk update && apk add --upgrade botan
```

Alpine v3.19

Source: Alpine secdb

botan→ fixed in2.5.0-r0
```
apk update && apk add --upgrade botan
```

Are YOU affected by CVE-2018-9127?

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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