CVE-2020-13757

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-13757
Python-RSA before 4.1 ignores leading '\0' bytes during decryption of ciphertext. This could conceivably have a security-relevant impact, e.g., by helping an attacker to infer that an application uses Python-RSA, or if the length of accepted ciphertext affects application behavior (such as by causing excessive memory allocation).

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References
Link Resource
https://github.com/sybrenstuvel/python-rsa/issues/146 Issue Tracking Third Party Advisory
https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667 Exploit Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/
https://usn.ubuntu.com/4478-1/ Third Party Advisory
https://github.com/sybrenstuvel/python-rsa/issues/146 Issue Tracking Third Party Advisory
https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667 Exploit Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/
https://usn.ubuntu.com/4478-1/ Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:python-rsa_project:python-rsa:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
History

21 Nov 2024, 05:01

Type Values Removed Values Added
References () https://github.com/sybrenstuvel/python-rsa/issues/146 - Issue Tracking, Third Party Advisory () https://github.com/sybrenstuvel/python-rsa/issues/146 - Issue Tracking, Third Party Advisory
References () https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667 - Exploit, Issue Tracking, Third Party Advisory () https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667 - Exploit, Issue Tracking, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ/ -
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/ -
References () https://usn.ubuntu.com/4478-1/ - Third Party Advisory () https://usn.ubuntu.com/4478-1/ - Third Party Advisory

01 Mar 2023, 03:09

Type Values Removed Values Added
References (MISC) https://github.com/sybrenstuvel/python-rsa/issues/146 - Third Party Advisory (MISC) https://github.com/sybrenstuvel/python-rsa/issues/146 - Issue Tracking, Third Party Advisory
References (UBUNTU) https://usn.ubuntu.com/4478-1/ - (UBUNTU) https://usn.ubuntu.com/4478-1/ - Third Party Advisory
References (CONFIRM) https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667 - (CONFIRM) https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667 - Exploit, Issue Tracking, Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ/ - Mailing List, Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/ - Mailing List, Third Party Advisory
CPE cpe:2.3:a:python-rsa_project:python-rsa:4.0:*:*:*:*:*:*:* cpe:2.3:a:python-rsa_project:python-rsa:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
Information

Published : 2020-06-01 19:15

Updated : 2024-11-21 05:01

NVD link : CVE-2020-13757

Mitre link : CVE-2020-13757

CVE.ORG link : CVE-2020-13757

JSON object : View

Products Affected

python-rsa_project

  • python-rsa

fedoraproject

  • fedora

canonical

  • ubuntu_linux
CWE
CWE-327

Use of a Broken or Risky Cryptographic Algorithm