CVE-2024-50383: Medium severity botan vulnerability
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.)
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2024-50383?
CVE-2024-50383 is considered to have a medium severity level due to its potential impact on cryptographic operations.
How do I fix CVE-2024-50383?
To fix CVE-2024-50383, upgrade Botan to version 3.6.0 or later, which addresses the vulnerability.
Which versions of Botan are affected by CVE-2024-50383?
CVE-2024-50383 affects all versions of Botan prior to 3.6.0.
What specific operations are impacted by CVE-2024-50383?
CVE-2024-50383 impacts secret-dependent operations in the donna128 implementation used in Chacha-Poly1305 and x25519.
What compilers are known to trigger CVE-2024-50383?
GCC versions, specifically 11.3.0 with -O2 on MIPS and x86-i386 architectures, are known to trigger CVE-2024-50383.