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{"bugzilla": {"description": "kernel: netfilter: nf_tables: release flow rule object from commit path", "id": "2363426", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363426"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnetfilter: nf_tables: release flow rule object from commit path\nNo need to postpone this to the commit release path, since no packets\nare walking over this object, this is accessed from control plane only.\nThis helped uncovered UAF triggered by races with the netlink notifier."], "name": "CVE-2022-49919", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49919\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49919\nhttps://lore.kernel.org/linux-cve-announce/2025050108-CVE-2022-49919-858c@gregkh/T"], "statement": "A use-after-free vulnerability was identified in the nf_tables subsystem of the Linux kernel. The flow rule object was previously released too late during the commit release path, which could result in race conditions when netlink notifications are processed concurrently. The fix moves the destruction of the flow rule earlier in the commit phase to eliminate the window for race-triggered UAF. The flaw can be triggered locally via crafted netlink messages and may lead to system instability or denial of service.", "threat_severity": "Moderate"}