A nil pointer dereference in the golang.org/x/crypto/ssh component through…
Priority LOW 39CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 3 fixed, 8 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-476.
Summary
A nil pointer dereference in the golang.org/x/crypto/ssh component through v0.0.0-20201203163018-be400aefbc4c for Go allows remote attackers to cause a denial of service against SSH servers.
Why it matters now
EPSS 0.03179 88th percentileScored 2026-11-07
Fix Partial golang.org/x/crypto (Go): 0.0.0-20201216223049-8b5274cf687fRed Hat: 3 advisoriesRed Hat: 3 fixed, 8 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | golang.org/x/crypto (Go) | before 0.0.0-20201216223049-8b5274cf687f | 0.0.0-20201216223049-8b5274cf687f | Patch available | GHSA-3vm4-22fp-5rfm |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- golang.org/x/crypto (Go) Vendor— Affected before 0.0.0-20201216223049-8b5274cf687f Fixed in 0.0.0-20201216223049-8b5274cf687f Patch available GHSA-3vm4-22fp-5rfm
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:golang:ssh:*:*:*:*:*:*:*:* | up to 0.0.0-20201203163018-be400aefbc4c | Vulnerable | Go standard library |
- cpe:2.3:a:golang:ssh:*:*:*:*:*:*:*:* Versions up to 0.0.0-20201203163018-be400aefbc4c Vulnerable ·Go standard library
Remediation
- Fix · GHSA-3vm4-22fp-5rfm golang.org/x/crypto (Go) Fixed in 0.0.0-20201216223049-8b5274cf687f Advisory →
Red Hat 3 advisories
- RHSA-2021:2920 Released 2021-07-28 · Red Hat rating ModerateOpenShift Virtualization 4.8.0 Images
- CNV 4.8 for RHEL 8 container-native-virtualization/vm-import-operator-rhel8
- RHSA-2021:1796 Released 2021-05-18 · Red Hat rating Moderatecontainer-tools:rhel8 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 8) buildah-1.19.7-1.module+el8.4.0+10607+f4da7515.aarch64::container-tools:rhel8, buildah-1.19.7-1.module+el8.4.0+10607+f4da7515.ppc64le::container-tools:rhel8, buildah-1.19.7-1.module+el8.4.0+10607+f4da7515.s390x::container-tools:rhel8 +47
- RHSA-2021:0799 Released 2021-03-10 · Red Hat rating ModerateOpenShift Virtualization 2.6.0 security and bug fix update
- CNV 2.6 for RHEL 8 container-native-virtualization/kubevirt-cpu-model-nfd-plugin, container-native-virtualization/kubevirt-cpu-node-labeller, container-native-virtualization/kubevirt-kvm-info-nfd-plugin +2
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Service Mesh 2.0 | Affected | No fix yet |
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix yet |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat OpenShift Container Platform 3.11 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat OpenShift Virtualization 2 | Affected | No fix yet |
| Red Hat Openshift Container Storage 4 | Affected | No fix yet: Fix deferred |
| Red Hat Storage 3 | Affected | No fix yet: Fix deferred |
| CNV 4.8 for RHEL 8 | Fixed | RHSA-2021:2920 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2021:1796 |
| Red Hat OpenShift Container Platform 4.7 | Fixed | RHSA-2020:5633 |
Not affected: 3 products
- Red Hat OpenShift Container Platform 3.11
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 4.7
Timeline
- 2026-10-02 Threatist record created from CVE-2020-29652
- 2026-10-03 Alias added: GHSA-3vm4-22fp-5rfm
References
Advisory 3
Other 5
- [skywalking-notifications] 20211018 [GitHub] [skywalking-swck] hanahmily opened a new pull request #37: Fix vulnerabilities
- https://go.dev/cl/278852
- https://go.googlesource.com/crypto/+/8b5274cf687fd9316b4108863654cc57385531e8
- https://lists.apache.org/thread.html/r68032132c0399c29d6cdc7bd44918535da54060a10a12b1591328bff@%3Cnotifications.skywalking.apache.org%3E
- https://pkg.go.dev/vuln/GO-2021-0227
More Go standard library Ssh vulnerabilities
- TI-2022-10313 The golang.org/x/crypto/ssh package before 0.0.0-20220314234659-1baeb1ce4c0b for Go… CVSS 3.1HIGH 7.5
- TI-2021-19455 The x/crypto/ssh package before 0.0.0-20211202192323-5770296d904e of golang.org/x/crypto… CVSS 3.1HIGH 7.5
Sources
- CVE-2020-29652 · CVE Program
- CVE-2020-29652 · NVD
- FIRST EPSS
- GHSA-3vm4-22fp-5rfm · GitHub Advisory Database · CC BY 4.0
- CVE-2020-29652 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences