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CVE-2023-50781— M2crypto: bleichenbacher timing attacks in the rsa decryption api - incomplete fix for cve-2020-25657

Quick assessment

Affected
CVE-2023-50781
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

m2crypto是一个Python的加密和 SSL 工具包。 m2crypto存在安全漏洞。攻击者利用该漏洞可以获取敏感信息。

CVSS 7.5 · High EPSS 1.12% · P66

Affected Version Matrix 8

VendorProduct Version RangeStatus
None None any affected
Red Hat Red Hat Enterprise Linux 6 any unknown
Red Hat Red Hat Enterprise Linux 7 any unknown
Red Hat Red Hat Enterprise Linux 8 any unaffected
Red Hat Red Hat Enterprise Linux 9 any unaffected
any unaffected
Red Hat Red Hat Update Infrastructure 4 for Cloud Providers any affected
Red Hat Red Hat Virtualization 4 any unaffected

I. Basic Information for CVE-2023-50781

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
M2crypto: bleichenbacher timing attacks in the rsa decryption api - incomplete fix for cve-2020-25657
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过差异性导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
m2crypto 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
m2crypto是一个Python的加密和 SSL 工具包。 m2crypto存在安全漏洞。攻击者利用该漏洞可以获取敏感信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- - - -
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9
Red Hat Red Hat Update Infrastructure 4 for Cloud Providers - cpe:/a:redhat:rhui:4::el8
Red Hat Red Hat Virtualization 4 - cpe:/o:redhat:rhev_hypervisor:4

II. Public POCs for CVE-2023-50781

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2023-50781

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Vendor Advisories for CVE-2023-50781 (2)

IV. Related Vulnerabilities

Same weakness: CWE-203

V. Comments for CVE-2023-50781

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