CVE-2023-50781

M2crypto: bleichenbacher timing attacks in the rsa decryption api - incomplete fix for cve-2020-25657

Published Feb 5, 2024 CVSS 3.1 · 7.5 High EPSS 1.1% KEV · Not listed
Description
A flaw was found in m2crypto. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.

Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-0587 A flaw was found in m2crypto. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.
Github GHSA Github GHSA GHSA-944j-8ch6-rf6x m2crypto Bleichenbacher timing attack - incomplete fix for CVE-2020-25657
History
Type Values Removed Values Added
CPEs cpe:2.3:a:m2crypto_project:m2crypto:-:*:*:*:*:*:*:* cpe:2.3:a:m2crypto_project:m2crypto:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics epss

{'score': 0.00306}

epss

{'score': 0.00454}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Oct 15, 2026, 12:08 AM
Reserved
Dec 13, 2023, 8:44 PM
Status
Analyzed
Published
Feb 5, 2024, 9:15 PM
Modified
Oct 15, 2026, 1:17 AM
Severity
Moderate
Public date
Dec 13, 2023, 12:00 AM