CVE-2024-50383 Information disclosure in n/a
Compiler optimization flaws in Botan on 32-bit systems may leak cryptographic secrets via timing side-channels in ChaCha-Poly1305 and x25519.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-50383?
CVE-2024-50383 is a medium-severity vulnerability in n/a, published on 23 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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. (Only 32-bit processors can be affected.)
Weakness: CWE-203
Which versions are affected by CVE-2024-50383?
It affects 1 product.
Products include Botan Project Botan.
How do I fix CVE-2024-50383?
Upgrade to a fixed version.
Is CVE-2024-50383 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-50383 exists.
Other vulnerabilities in n/a
Sources
Also known as AZL-51681, AZL-51701, DEBIAN-CVE-2024-50383, GHSA-m6p4-vhgw-8c9c, MGASA-2025-0295, ROOT-OS-ALPINE-320-CVE-2024-50383 and 1 more.