Medium severity · published Jan 12, 2021
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 timed processing of valid…
5.9
CVSS
1.8%
EPSS
No
On KEV
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:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
6.0; 7.0 · source: NVD
FE
Fedora · Fedoraproject
33 · source: NVD
M2
M2crypto · M2crypto Project
All versions, or not specified · source: NVD
VI
Virtualization · Redhat
4.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-25657
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-25657
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1889823
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