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{"acknowledgement": "Red Hat would like to thank Jann Horn for reporting this issue.", "bugzilla": {"description": "kernel: out-of-bounds read/write in et/ipv4/netfilter/nf_nat_snmp_basic_main.c in the SNMP NAT module", "id": "1683191", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1683191"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-119", "details": ["In the Linux kernel before 4.20.12, net/ipv4/netfilter/nf_nat_snmp_basic_main.c in the SNMP NAT module has insufficient ASN.1 length checks (aka an array index error), making out-of-bounds read and write operations possible, leading to an OOPS or local privilege escalation. This affects snmp_version and snmp_helper.", "It was found that there are insufficient ASN.1 sequence length checks (a.k.a. an array index error) in the Linux kernel in the snmp_version() and snmp_helper() functions in the net/ipv4/netfilter/nf_nat_snmp_basic_main.c in the [nf_nat_snmp_basic] module making out-of-bounds read and write operations possible. An unprivileged local attacker can use this flaw to cause a kernel OOPS condition and thus a denial of service (DoS). Due to the nature of the flaw, successful exploitation from the network or privilege escalation cannot be fully ruled out."], "name": "CVE-2019-9162", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-alt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2019-02-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-9162\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-9162\nhttps://bugs.chromium.org/p/project-zero/issues/detail?id=1776\nhttps://seclists.org/oss-sec/2019/q1/166"], "threat_severity": "Important"}