CVE-2020-9283
Vulnerability Summary
Timeline
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
- v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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: 20.52%• Percentile: 97%
Techniques & Countermeasures
- CWE-347•Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
Affected Systems
- chainguard•dex-k8s-authenticator
< 0
- chainguard•k3d
< 5.6.0-r11
- chainguard•k3d-proxy
< 5.6.0-r11
- chainguard•k3d-tools
< 5.6.0-r11
- wolfi•k3d
< 5.6.0-r11
- wolfi•k3d-proxy
< 5.6.0-r11
- wolfi•k3d-tools
< 5.6.0-r11
- debian•golang-go.crypto
< 1:0.0~git20200221.2aa609c-1 | < 1:0.0~git20200221.2aa609c-1 | < 1:0.0~git20200221.2aa609c-1 | < 1:0.0~git20200221.2aa609c-1
- debian•debian_linux
9.0
- golang.org/x•crypto
< 0.0.0-20200220183623-bac4c82f6975
- golang•package_ssh
0.0.0-20200220183623-bac4c82f6975
- redhat•openshift-clients
< 0:4.3.31-202007250052.p0.git.3329.59998b9.el7 | < 0:4.3.31-202007250052.p0.git.3329.59998b9.el8
- redhat•openshift-clients-redistributable
< 0:4.3.31-202007250052.p0.git.3329.59998b9.el7 | < 0:4.3.31-202007250052.p0.git.3329.59998b9.el8
References (22)
- 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
- https://access.redhat.com/errata/RHBA-2020:3179
- https://bugzilla.redhat.com/show_bug.cgi?id=1854927
- https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhba-2020_3179.json
- https://access.redhat.com/security/cve/CVE-2020-9283
- https://bugzilla.redhat.com/show_bug.cgi?id=1804533
- https://www.cve.org/CVERecord?id=CVE-2020-9283
- https://security-tracker.debian.org/tracker/CVE-2020-9283