Bug 1219084 (CVE-2024-23342)

Summary: VUL-0: CVE-2024-23342: python-ecdsa: vulnerable to the Minerva attack
Product: [Novell Products] SUSE Security Incidents Reporter: SMASH SMASH <smash_bz>
Component: IncidentsAssignee: Security Team bot <security-team>
Status: RESOLVED WONTFIX QA Contact: Security Team bot <security-team>
Severity: Major    
Priority: P3 - Medium CC: camila.matos, kvanderveer, thomas.leroy
Version: unspecified   
Target Milestone: ---   
Hardware: Other   
OS: Other   
URL: https://smash.suse.de/issue/391940/
Whiteboard: CVSSv3.1:SUSE:CVE-2024-23342:7.4:(AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)
Found By: Security Response Team Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---

Description SMASH SMASH 2024-01-23 10:23:36 UTC 
The `ecdsa` PyPI package is a pure Python implementation of ECC (Elliptic Curve Cryptography) with support for ECDSA (Elliptic Curve Digital Signature Algorithm), EdDSA (Edwards-curve Digital Signature Algorithm) and ECDH (Elliptic Curve Diffie-Hellman). Versions 0.18.0 and prior are vulnerable to the Minerva attack. As of time of publication, no known patched version exists.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-23342
https://securitypitfalls.wordpress.com/2018/08/03/constant-time-compare-in-python/
https://www.cve.org/CVERecord?id=CVE-2024-23342
https://github.com/tlsfuzzer/python-ecdsa/blob/master/SECURITY.md
https://github.com/tlsfuzzer/python-ecdsa/security/advisories/GHSA-wj6h-64fc-37mp
https://minerva.crocs.fi.muni.cz/
https://bugzilla.redhat.com/show_bug.cgi?id=2259780
Comment 1 Thomas Leroy 2024-01-23 10:24:37 UTC 
Currently wontfix from upstream. Let's wait a bit if they change their mind
Comment 2 Camila Camargo de Matos 2024-05-10 14:45:32 UTC 
As per the advisory in [0], it seems like upstream won't be fixing this issue.

[0] https://github.com/tlsfuzzer/python-ecdsa/security/advisories/GHSA-wj6h-64fc-37mp