CVE-2024-50383 · cross-distro fix matrix

CVE-2024-50383: Botan before 3.6.0, when certain GCC versions are used, has a compiler-induced secret-dependent operation in lib/utils/donna128.h in donna128 (used in Chacha-Poly1305 and x25519). An addition can be skipped if a carry is not set. This was observed for GCC 11.3.0 with -O2 on MIPS, and GCC on x86-i386

Affects 2 Linux releases across 2 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2024-50383 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

botan→ fixed in2.19.3+dfsg-1+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y botan
```

Debian trixie

Source: Debian Security Tracker

botan→ fixed in2.19.5+dfsg-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y botan
```

Are YOU affected by CVE-2024-50383?

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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