CVE-2020-25658

CVSS V2 Medium 4.3 CVSS V3 Medium 5.9
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.
Overview
  • CVE ID
  • CVE-2020-25658
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2020-11-12T14:15:22
  • Last Modified Date
  • 2023-02-12T23:40:35
Weakness Enumerations
CWE URL
CWE-385 http://cwe.mitre.org/data/definitions/385.html
CWE-327 http://cwe.mitre.org/data/definitions/327.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:python-rsa_project:python-rsa:*:*:*:*:*:*:*:* 1 OR 2.1 4.7
cpe:2.3:a:redhat:openstack_platform:13.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:redhat:openstack_platform:16.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 5.9
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.2
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://access.redhat.com/errata/RHSA-2020:5634
https://access.redhat.com/errata/RHSA-2021:0637
https://access.redhat.com/errata/RHSA-2022:1716
https://access.redhat.com/security/cve/CVE-2020-25658
https://bugzilla.redhat.com/show_bug.cgi?id=1889972
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25658 Issue Tracking Third Party Advisory
https://github.com/sybrenstuvel/python-rsa/issues/165 Exploit Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2SAF67KDGSOHLVFTRDOHNEAFDRSSYIWA/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APF364QJ2IYLPDNVFBOEJ24QP2WLVLJP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QY4PJWTYSOV7ZEYZVMYIF6XRU73CY6O7/
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-25658
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25658
History
Created Old Value New Value Data Type Notes
2022-05-10 06:39:45 Added to TrackCVE
2022-12-05 16:37:04 2020-11-12T14:15Z 2020-11-12T14:15:22 CVE Published Date updated
2022-12-05 16:37:04 2022-01-01T18:18:34 CVE Modified Date updated
2022-12-05 16:37:04 Analyzed Vulnerability Status updated
2023-02-02 22:11:25 2023-02-02T21:20:35 CVE Modified Date updated
2023-02-02 22:11:25 Analyzed Modified Vulnerability Status updated
2023-02-02 22:11:25 Weakness Enumeration update
2023-02-02 22:11:25 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. A flaw was found in python-rsa, where it is vulnerable to Bleichenbacher timing attacks. This flaw allows an attacker, via the RSA decryption API, to decrypt parts of the ciphertext encrypted with RSA. The highest threat from this vulnerability is to confidentiality. Description updated
2023-02-02 22:11:26 References updated
2023-02-13 00:11:53 2023-02-12T23:40:35 CVE Modified Date updated
2023-02-13 00:11:54 Weakness Enumeration update
2023-02-13 00:11:54 A flaw was found in python-rsa, where it is vulnerable to Bleichenbacher timing attacks. This flaw allows an attacker, via the RSA decryption API, to decrypt parts of the ciphertext encrypted with RSA. The highest threat from this vulnerability is to confidentiality. 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. Description updated