High [CVE-2020-25657 +1] M2crypto: bleichenbacher timing attacks in the rsa decryption api - incomplete fix for CVE-2020-25657
This high-severity Red Hat Linux advisory covers CVE-2023-50781 and CVE-2020-25657 affecting Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Update Infrastructure 4 for Cloud Providers.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations. This bulletin covers 2 CVEs; its score, affected versions and guidance may apply to different issues within that bulletin.
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Summary
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.
This vulnerability exists due to an incomplete fix for CVE-2020-25657. Red Hat severity: Moderate — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
Weakness: CWE-203. Affected Red Hat products: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Update Infrastructure 4 for Cloud Providers.
Red Hat lists Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Virtualization 4 as not affected. Will not fix / out of support: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7.
Red Hat does not currently list a fixing RHSA for this CVE.
Affected products named by the advisory: Red Hat package: m2crypto.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
Mitigation checklist
- 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.
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
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