Out-of-Bounds Write in Linux netfilter subsystem (CVE-2022-1015)
Summary
Out-of-bounds write in Linux netfilter subsystem (CVE-2022-1015). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
A flaw was found in the Linux kernel in linux/net/netfilter/nf_tables_api.c of the netfilter subsystem. This flaw allows a local user to cause an out-of-bounds write issue.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2022-1015 has been found in Linux netfilter subsystem.
Risk of unauthorized operations or information disclosure. CVSS score: 6.6/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Linux netfilter subsystem CVE-2022-1015" on the vendor's site.
CVE-2022-1015 (Linux netfilter subsystem) — CWE-787 / CVSS v3 6.6
Attack vector: local / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Out-of-bounds write (CWE-787) exists in Linux netfilter subsystem.
Check the vendor advisory for the affected versions of Linux netfilter subsystem.
Severity: Medium (CVSS 6.6/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Linux netfilter subsystem を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2022-1015 linux Fixed in: 5.16.18-1
References
- advisory packetstormsecurity.com
- advisory openwall.com
- advisory openwall.com
- exploit blog.dbouman.nl
- exploit bugzilla.redhat.com
- exploit seclists.org
- web openwall.com
- web cert-portal.siemens.com
- web cert-portal.siemens.com
- web cert-portal.siemens.com
- web cert-portal.siemens.com