CVE-2020-25659

CVSS V2 Medium 4.3 CVSS V3 Medium 5.9
Description
python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.
Overview
  • CVE ID
  • CVE-2020-25659
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-01-11T16:15:15
  • Last Modified Date
  • 2023-02-09T02:25:50
Weakness Enumerations
CWE URL
NVD-CWE-Other http://cwe.mitre.org/data/definitions/NVD-Other.html
CWE-385 http://cwe.mitre.org/data/definitions/385.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:python-cryptography_project:python-cryptography:3.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:* 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://github.com/pyca/cryptography/pull/5507/commits/ce1bef6f1ee06ac497ca0c837fbd1c7ef6c2472b Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-25659
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25659
History
Created Old Value New Value Data Type Notes
2022-04-20 16:59:50 Added to TrackCVE
2022-12-05 19:43:38 2021-01-11T16:15Z 2021-01-11T16:15:15 CVE Published Date updated
2022-12-05 19:43:38 2022-07-25T18:15:20 CVE Modified Date updated
2022-12-05 19:43:38 Undergoing Analysis Vulnerability Status updated
2022-12-05 19:43:42 References updated
2023-02-09 03:12:37 2023-02-09T02:25:50 CVE Modified Date updated
2023-02-09 03:12:37 Undergoing Analysis Analyzed Vulnerability Status updated
2023-02-09 03:12:38 Weakness Enumeration update