CVE-2020-36242

In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.
Configurations

Configuration 1 (hide)

cpe:2.3:a:cryptography_project:cryptography:*:*:*:*:*:python:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:*

History

07 Nov 2023, 03:22

Type Values Removed Values Added
References
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L7RGQLK4J5ZQFRLKCHVVG6BKZTUQMG7E/', 'name': 'FEDORA-2021-8e36e7ed1a', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L7RGQLK4J5ZQFRLKCHVVG6BKZTUQMG7E/ -

06 Dec 2022, 21:52

Type Values Removed Values Added
References (N/A) https://www.oracle.com/security-alerts/cpujul2022.html - (N/A) https://www.oracle.com/security-alerts/cpujul2022.html - Patch, Third Party Advisory

25 Jul 2022, 18:15

Type Values Removed Values Added
References
  • (N/A) https://www.oracle.com/security-alerts/cpujul2022.html -

12 May 2022, 14:33

Type Values Removed Values Added
References (MISC) https://www.oracle.com/security-alerts/cpuapr2022.html - (MISC) https://www.oracle.com/security-alerts/cpuapr2022.html - Patch, Third Party Advisory
First Time Oracle
Oracle communications Cloud Native Core Network Function Cloud Native Environment
CPE cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:*

20 Apr 2022, 00:15

Type Values Removed Values Added
References
  • (MISC) https://www.oracle.com/security-alerts/cpuapr2022.html -
CWE CWE-120 CWE-787

19 Feb 2021, 17:23

Type Values Removed Values Added
CPE cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L7RGQLK4J5ZQFRLKCHVVG6BKZTUQMG7E/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L7RGQLK4J5ZQFRLKCHVVG6BKZTUQMG7E/ - Mailing List, Third Party Advisory

12 Feb 2021, 04:15

Type Values Removed Values Added
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L7RGQLK4J5ZQFRLKCHVVG6BKZTUQMG7E/ -

09 Feb 2021, 14:36

Type Values Removed Values Added
CWE CWE-190
CWE-120
CPE cpe:2.3:a:cryptography_project:cryptography:*:*:*:*:*:python:*:*
References (CONFIRM) https://github.com/pyca/cryptography/blob/master/CHANGELOG.rst - (CONFIRM) https://github.com/pyca/cryptography/blob/master/CHANGELOG.rst - Release Notes, Third Party Advisory
References (MISC) https://github.com/pyca/cryptography/issues/5615 - (MISC) https://github.com/pyca/cryptography/issues/5615 - Exploit, Patch, Third Party Advisory
References (CONFIRM) https://github.com/pyca/cryptography/compare/3.3.1...3.3.2 - (CONFIRM) https://github.com/pyca/cryptography/compare/3.3.1...3.3.2 - Patch, Third Party Advisory
CVSS v2 : unknown
v3 : unknown
v2 : 6.4
v3 : 9.1

07 Feb 2021, 20:15

Type Values Removed Values Added
New CVE

Information

Published : 2021-02-07 20:15

Updated : 2023-12-10 13:41


NVD link : CVE-2020-36242

Mitre link : CVE-2020-36242

CVE.ORG link : CVE-2020-36242


JSON object : View

Products Affected

fedoraproject

  • fedora

oracle

  • communications_cloud_native_core_network_function_cloud_native_environment

cryptography_project

  • cryptography
CWE
CWE-190

Integer Overflow or Wraparound

CWE-787

Out-of-bounds Write