CVE-2020-1730
Libssh AES-CTR/DES Cipher Initialization Crash Vulnerability
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.
INFO
Published Date :
April 13, 2020, 7:15 p.m.
Last Modified :
Nov. 7, 2023, 3:19 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2020-1730
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-1730.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1730 | Issue Tracking Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2A7BIFKUYIYKTY7FX4BEWVC2OHS5DPOU/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLSWHBQ3EPKGTGLQNH554Z746BJ3C554/ | |
| https://security.netapp.com/advisory/ntap-20200424-0001/ | Third Party Advisory |
| https://usn.ubuntu.com/4327-1/ | Third Party Advisory |
| https://www.libssh.org/security/advisories/CVE-2020-1730.txt | Vendor Advisory |
| https://www.oracle.com/security-alerts/cpuoct2020.html | Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-1730 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-1730 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLSWHBQ3EPKGTGLQNH554Z746BJ3C554/ [No types assigned] Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2A7BIFKUYIYKTY7FX4BEWVC2OHS5DPOU/ [No types assigned] Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/VLSWHBQ3EPKGTGLQNH554Z746BJ3C554/ Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/2A7BIFKUYIYKTY7FX4BEWVC2OHS5DPOU/ Removed CVSS V3 Red Hat, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Added CVSS V3.1 Red Hat, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L -
Modified Analysis by [email protected]
Nov. 08, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* OR *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 07, 2022
Action Type Old Value New Value Removed CWE Red Hat, Inc. CWE-400 Added CWE Red Hat, Inc. CWE-476 Removed CWE Reason CWE-400 / More specific CWE option available -
Modified Analysis by [email protected]
Sep. 14, 2021
Action Type Old Value New Value Changed Reference Type https://www.oracle.com/security-alerts/cpuoct2020.html No Types Assigned https://www.oracle.com/security-alerts/cpuoct2020.html Patch, Third Party Advisory Removed CWE NIST CWE-400 Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:a:oracle:mysql_workbench:*:*:*:*:*:*:*:* versions up to (including) 8.0.21 -
CVE Modified by [email protected]
Oct. 20, 2020
Action Type Old Value New Value Added Reference https://www.oracle.com/security-alerts/cpuoct2020.html [No Types Assigned] -
CPE Deprecation Remap by [email protected]
Oct. 15, 2020
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:redhat:virtualization:4.0:*:*:*:*:*:*:* OR *cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* -
Modified Analysis by [email protected]
Jul. 10, 2020
Action Type Old Value New Value Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/2A7BIFKUYIYKTY7FX4BEWVC2OHS5DPOU/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/2A7BIFKUYIYKTY7FX4BEWVC2OHS5DPOU/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/VLSWHBQ3EPKGTGLQNH554Z746BJ3C554/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/VLSWHBQ3EPKGTGLQNH554Z746BJ3C554/ Mailing List, Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20200424-0001/ No Types Assigned https://security.netapp.com/advisory/ntap-20200424-0001/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4327-1/ No Types Assigned https://usn.ubuntu.com/4327-1/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:virtualization:4.0:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:virtualization:4.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 28, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/2A7BIFKUYIYKTY7FX4BEWVC2OHS5DPOU/ [No Types Assigned] -
CVE Modified by [email protected]
Apr. 24, 2020
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20200424-0001/ [No Types Assigned] -
CVE Modified by [email protected]
Apr. 22, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4327-1/ [No Types Assigned] -
CVE Modified by [email protected]
Apr. 18, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/VLSWHBQ3EPKGTGLQNH554Z746BJ3C554/ [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 13, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1730 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1730 Issue Tracking, Third Party Advisory Changed Reference Type https://www.libssh.org/security/advisories/CVE-2020-1730.txt No Types Assigned https://www.libssh.org/security/advisories/CVE-2020-1730.txt Vendor Advisory Added CWE NIST CWE-400 Added CPE Configuration OR *cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:* versions from (including) 0.8.0 up to (excluding) 0.8.9 *cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:* versions from (including) 0.9.0 up to (excluding) 0.9.4 Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:virtualization:4.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-1730 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-1730
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.41 }} -0.01%
score
0.74276
percentile