CVE-2020-9283
golang.org/x/crypto before v0.0.0-20200220183623-bac4c82f6975 for Go allows a panic during signature verification in the…
- 7.5HighCVSS base score
- 21.1%Exploitation in 30 daysEPSS · top 2.4% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- Go SSH servers 0.0.2 - Denial of Service (PoC) (Exploit-DB entry) (opens in a new tab)
EDB-ID 48121dos, linuxpublished 24 Feb 2020Not verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
- 1 day later
· 1 day later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 21.1% · top 2.4% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogolang.org/x/cryptoGHSA-ffhg-7mh4-33c4 (opens in a new tab)
References
References6
- https://groups.google.com/forum/#%21topic/golang-announce/3L45YRc91SY (opens in a new tab)x_transferred
- http://packetstormsecurity.com/files/156480/Go-SSH-0.0.2-Denial-Of-Service.html (opens in a new tab)x_transferred
- [debian-lts-announce] 20201007 [SECURITY] [DLA 2402-1] golang-go.crypto security update (opens in a new tab)mailing-listx_transferred
- [debian-lts-announce] 20201116 [SECURITY] [DLA 2453-1] restic security update (opens in a new tab)mailing-listx_transferred
- [debian-lts-announce] 20201118 [SECURITY] [DLA 2455-1] packer security update (opens in a new tab)mailing-listx_transferred
- [debian-lts-announce] 20230616 [SECURITY] [DLA 3455-1] golang-go.crypto security update (opens in a new tab)mailing-listx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2021-1059 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-ffhg-7mh4-33c4 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2020-9283)Record last updated .