CVE-2020-9283
Aliases:GHSA-ffhg-7mh4-33c4GO-2020-0012
Advisory lineage Upstream: 0 Downstream: 9
Modified
Published: 20 Feb 2020, 00:00
Last modified:04 Aug 2024, 10:26
Vulnerability Summary
Overall Risk (default)
medium
44/100 CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
18.68% MEDIUM
19% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
2 found
Dark Web
Not detected
Timeline
20 Feb 2020, 00:00
Published
Vulnerability first disclosed
04 Aug 2024, 10:26
Last Modified
Vulnerability information updated
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.
CVSS Metrics
- v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS Trends
Current EPSS score: 18.68%• Percentile: 95%
Techniques & Countermeasures
- CWE-347•Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
Affected Systems
- debian•debian_linux
9.0
- golang.org/x•crypto
< 0.0.0-20200220183623-bac4c82f6975
- golang•package_ssh
0.0.0-20200220183623-bac4c82f6975
References (15)
- https://groups.google.com/forum/#%21topic/golang-announce/3L45YRc91SY
- http://packetstormsecurity.com/files/156480/Go-SSH-0.0.2-Denial-Of-Service.html
- 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
- https://nvd.nist.gov/vuln/detail/CVE-2020-9283
- https://github.com/golang/crypto/commit/bac4c82f69751a6dd76e702d54b3ceb88adab236
- https://github.com/golang/crypto
- https://go.dev/cl/220357
- https://go.googlesource.com/crypto/+/bac4c82f69751a6dd76e702d54b3ceb88adab236
- https://groups.google.com/forum/#!topic/golang-announce/3L45YRc91SY
- https://groups.google.com/g/golang-announce/c/3L45YRc91SY
- https://pkg.go.dev/vuln/GO-2020-0012
- https://www.exploit-db.com/exploits/48121