VDB
CVE-2021-4218
CVE-2021-4218
PUBLISHED
Reported by redhat · Published August 24, 2022
A flaw was found in the Linux kernel’s implementation of reading the SVC RDMA counters. Reading the counter sysctl panics the system. This flaw allows a local attacker with local access to cause a denial of service while the system reboots. The issue is specific to CentOS/RHEL.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| linux-vmware-6.18 | Chainguard | 6.18.10-r0 |
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | kernel | NA |
| chainguard | linux-vmware-6.18 | 0 |
| chainguard | linux | * |
| n/a | kernel | * |
| chainguard | linux-azure-6.12 | * |
| chainguard | linux-aws-generic | * |
| chainguard | linux-azure-6.18 | * |
| chainguard | linux-qemu-melange | 0 |
| chainguard | linux-qemu-generic | * |
| chainguard | linux-gcp-6.18 | * |
| chainguard | linux-aws-6.12 | * |
| chainguard | linux-qemu-6.18 | 0 |
| chainguard | linux-aws-6.18 | * |
| chainguard | linux-vmware-6.12 | * |
| chainguard | linux-azure-generic | * |
| chainguard | linux-vmware-generic | * |
| chainguard | linux-qemu-rc | * |
| chainguard | linux-gcp-6.12 | * |
| chainguard | linux-qemu-6.12 | * |
| chainguard | linux-gcp-generic | * |
Timeline
- Aug 24, 2022 CVE Published
- Aug 25, 2022 EPSS Score (30 in total, the first dated here)
- Aug 3, 2024 CVE Updated
- Apr 3, 2026 Security Advisory
- Jul 20, 2026 Coalition ESS Score
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2021-4218
vulnetix vdb fixes CVE-2021-4218Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2021-4218/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart