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. (Only 32-bit processors can be affected.)

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://arxiv.org/pdf/2410.13489	Exploit Third Party Advisory Technical Description
https://github.com/randombit/botan/commit/53b0cfde580e86b03d0d27a488b6c134f662e957	Patch
https://github.com/randombit/botan/compare/3.5.0...3.6.0	Product
https://news.ycombinator.com/item?id=41887153	Issue Tracking

Configurations

Configuration 1 (hide)

cpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*

History

10 Jul 2025, 19:26

Type	Values Removed	Values Added
References	~~() https://arxiv.org/pdf/2410.13489 -~~	() https://arxiv.org/pdf/2410.13489 - Exploit, Third Party Advisory, Technical Description
References	~~() https://github.com/randombit/botan/commit/53b0cfde580e86b03d0d27a488b6c134f662e957 -~~	() https://github.com/randombit/botan/commit/53b0cfde580e86b03d0d27a488b6c134f662e957 - Patch
References	~~() https://github.com/randombit/botan/compare/3.5.0...3.6.0 -~~	() https://github.com/randombit/botan/compare/3.5.0...3.6.0 - Product
References	~~() https://news.ycombinator.com/item?id=41887153 -~~	() https://news.ycombinator.com/item?id=41887153 - Issue Tracking
CPE		cpe:2.3:a:botan_project:botan::::::::
First Time		Botan Project botan Botan Project

Information

Published : 2024-10-23 17:15

Updated : 2025-07-10 19:26

NVD link : CVE-2024-50383

Mitre link : CVE-2024-50383

CVE.ORG link : CVE-2024-50383

JSON object : View

Products Affected

botan_project

botan

CWE

CWE-203

Observable Discrepancy

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