Vulnerability Report

CVE-2020-9283

Title: Golang Package Ssh

Other

Proof Of Concept

PoC Available for CVE-2020-9283

CWE Category CWE-347

Published Date Feb 20, 2020

Modified Date Jun 17, 2026

Exploit Status Available

Score 7.5 CVSS v3.1

Exploit Probability (EPSS)

20.89%

Vulnerability Summary

CVE-2020-9283: golang.org/x/crypto before v0.0.0-20200220183623-bac4c82f6975 for Go allows a panic during signature verification in the golang.org/x/crypto/ssh package. A client can attack an SSH server that accepts public keys. Also, a server can attack any SSH client.

Impacted Vendors

golang 1

Reference Links

http://packetstormsecurity.com/files/156480/Go-SSH-0.0.2-Denial-Of-Service.html https://groups.google.com/forum/#%21topic/golang-announce/3L45YRc91SY https://lists.debian.org/debian-lts-announce/2020/10/msg00014.html https://lists.debian.org/debian-lts-announce/2020/11/msg00027.html https://lists.debian.org/debian-lts-announce/2020/11/msg00031.html https://lists.debian.org/debian-lts-announce/2023/06/msg00017.html http://packetstormsecurity.com/files/156480/Go-SSH-0.0.2-Denial-Of-Service.html https://groups.google.com/forum/#%21topic/golang-announce/3L45YRc91SY https://lists.debian.org/debian-lts-announce/2020/10/msg00014.html https://lists.debian.org/debian-lts-announce/2020/11/msg00027.html https://lists.debian.org/debian-lts-announce/2020/11/msg00031.html https://lists.debian.org/debian-lts-announce/2023/06/msg00017.html

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.5

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

5.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-9283 Exploits & PoCs (Proof Of Concept)

Exploit-DB https://www.exploit-db.com/exploits/48121

View Code

June 17, 2026 MODIFIED

Vulnerability data updated via NVD.

November 21, 2024 MODIFIED

Vulnerability data or affected products updated.

February 20, 2020 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.