CVE-2020-25657

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-25657
A flaw was found in all released versions of m2crypto, where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption API via the timed processing of valid PKCS#1 v1.5 Ciphertext. The highest threat from this vulnerability is to confidentiality.

5.9 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.3 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1889823 Issue Tracking Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:m2crypto_project:m2crypto:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

Configuration 3 (hide)

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

12 Feb 2023, 23:40

Type Values Removed Values Added
CWE NVD-CWE-Other CWE-385
References
  • {'url': 'https://access.redhat.com/security/cve/CVE-2020-25657', 'name': 'https://access.redhat.com/security/cve/CVE-2020-25657', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/errata/RHSA-2021:1169', 'name': 'https://access.redhat.com/errata/RHSA-2021:1169', 'tags': [], 'refsource': 'MISC'}

02 Feb 2023, 21:20

Type Values Removed Values Added
References
  • (MISC) https://access.redhat.com/security/cve/CVE-2020-25657 -
  • (MISC) https://access.redhat.com/errata/RHSA-2021:1169 -

07 Apr 2021, 14:58

Type Values Removed Values Added
CWE CWE-385
CWE-203		 NVD-CWE-Other

25 Mar 2021, 20:46

Type Values Removed Values Added
References (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1889823 - (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1889823 - Issue Tracking, Third Party Advisory
CWE CWE-203
CPE cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*

08 Mar 2021, 15:15

Type Values Removed Values Added
References
  • {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1889823,https://gitlab.com/m2crypto/m2crypto/-/issues/285', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1889823,https://gitlab.com/m2crypto/m2crypto/-/issues/285', 'tags': ['Broken Link'], 'refsource': 'MISC'}

19 Jan 2021, 19:44

Type Values Removed Values Added
References
  • (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1889823 - Issue Tracking, Third Party Advisory
References (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1889823,https://gitlab.com/m2crypto/m2crypto/-/issues/285 - (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1889823,https://gitlab.com/m2crypto/m2crypto/-/issues/285 - Broken Link
CPE cpe:2.3:a:m2crypto_project:m2crypto:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : 4.3
v3 : 5.9

12 Jan 2021, 15:38

Type Values Removed Values Added
New CVE
Information

Published : 2021-01-12 15:15

Updated : 2023-12-10 13:41

NVD link : CVE-2020-25657

Mitre link : CVE-2020-25657

CVE.ORG link : CVE-2020-25657

JSON object : View

Products Affected

m2crypto_project

  • m2crypto

redhat

  • enterprise_linux
  • virtualization

fedoraproject

  • fedora
CWE
CWE-385

Covert Timing Channel

NVD-CWE-Other