Medium severity · published Nov 12, 2020
CVE-2020-25658
It was found that python-rsa is vulnerable to Bleichenbacher timing attacks
5.9
CVSS
1.7%
EPSS
No
On KEV
Description
It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA.
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)1.7% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Fedora · Fedoraproject
33; 34; 35 · source: NVD
OP
Openstack Platform · Redhat
13.0; 16.0 · source: NVD
PY
Python-rsa · Python-rsa Project
2.1 before 4.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-25658
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-25658
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25658
Exploit
https://github.com/sybrenstuvel/python-rsa/issues/165
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2SAF67KDGSOHLVFTRDOHNEAFDRSSYIWA/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APF364QJ2IYLPDNVFBOEJ24QP2WLVLJP/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QY4PJWTYSOV7ZEYZVMYIF6XRU73CY6O7/
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