CVE-2020-9283 EXPLOIT
7.5
HIGH · CVSS 3.1 · EPSS 20.5% (pctl 97)
Patch early
A public exploit exists.
Description
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.
Scoring
| CVSS | 7.5 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 20.52% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-347 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2020-02-20 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| debian | debian linux |
| golang | package ssh |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Go SSH servers 0.0.2 - Denial of Service (PoC) | 2020-02-24 |
References
- 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
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