CVE-2020-25657 — Covert Timing Channel in Fedora
Severity
5.9MEDIUMNVD
EPSS
0.3%
top 46.06%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJan 12
Latest updateFeb 5
Description
A flaw was found in all released versions of m2crypto, where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption API via the timed processing of valid PKCS#1 v1.5 Ciphertext. The highest threat from this vulnerability is to confidentiality.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 2.2 | Impact: 3.6
Affected Packages1 packages
Also affects: Fedora 33, Enterprise Linux 6.0, 7.0
🔴Vulnerability Details
4GHSA▶
GHSA-2j9v-8g47-mxh2: A flaw was found in all released versions of m2crypto, where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption API via the ti↗2022-05-24
OSV▶
CVE-2020-25657: A flaw was found in all released versions of m2crypto, where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption API via the ti↗2021-01-12
CVEList▶
CVE-2020-25657: A flaw was found in all released versions of m2crypto, where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption API via the ti↗2021-01-12
📋Vendor Advisories
4Red Hat▶
m2crypto: Bleichenbacher timing attacks in the RSA decryption API - incomplete fix for CVE-2020-25657↗2023-12-13
Microsoft▶
A flaw was found in all released versions of m2crypto where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption API via the timed processing of valid PKCS#1 v1.5 Ciphertext. The↗2021-01-12
Debian▶
CVE-2020-25657: m2crypto - A flaw was found in all released versions of m2crypto, where they are vulnerable...↗2020
💬Community
1Bugzilla
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