CVE-2020-1730

CVSS V2 Medium 5 CVSS V3 Medium 5.3
Description
A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.
Overview
  • CVE ID
  • CVE-2020-1730
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-04-13T19:15:11
  • Last Modified Date
  • 2022-11-08T20:09:29
Weakness Enumerations
CWE URL
CWE-476 http://cwe.mitre.org/data/definitions/476.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:* 1 OR 0.8.0 0.8.9
cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:* 1 OR 0.9.0 0.9.4
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:mysql_workbench:*:*:*:*:*:*:*:* 1 OR 8.0.21
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • LOW
  • Base Score
  • 5.3
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
https://www.libssh.org/security/advisories/CVE-2020-1730.txt Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1730 Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VLSWHBQ3EPKGTGLQNH554Z746BJ3C554/ Mailing List Third Party Advisory
https://usn.ubuntu.com/4327-1/ Third Party Advisory
https://security.netapp.com/advisory/ntap-20200424-0001/ Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2A7BIFKUYIYKTY7FX4BEWVC2OHS5DPOU/ Mailing List Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2020.html Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-1730
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1730
History
Created Old Value New Value Data Type Notes
2022-05-10 16:05:36 Added to TrackCVE
2022-12-04 14:21:49 2020-04-13T19:15Z 2020-04-13T19:15:11 CVE Published Date updated
2022-12-04 14:21:49 2022-11-08T20:09:29 CVE Modified Date updated
2022-12-04 14:21:49 Analyzed Vulnerability Status updated