{
  "threat_severity" : "Important",
  "public_date" : "2022-12-09T10:00:00Z",
  "bugzilla" : {
    "description" : "kernel: stack overflow in do_proc_dointvec and proc_skip_spaces",
    "id" : "2152548",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2152548"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.8",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-131",
  "details" : [ "A stack overflow flaw was found in the Linux kernel's SYSCTL subsystem in how a user changes certain kernel parameters and variables. This flaw allows a local user to crash or potentially escalate their privileges on the system.", "A stack overflow flaw was found in the Linux kernel's SYSCTL subsystem in how a user changes certain kernel parameters and variables. This flaw allows a local user to crash or potentially escalate their privileges on the system." ],
  "statement" : "To trigger this issue, the user needs some privileges (for example, access to the sysctl files), but usually less than root or CAP_NET_ADMIN.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 6 Extended Lifecycle Support",
    "release_date" : "2023-04-18T00:00:00Z",
    "advisory" : "RHSA-2023:1822",
    "cpe" : "cpe:/o:redhat:rhel_els:6",
    "package" : "kernel-0:2.6.32-754.50.1.el6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2023-03-07T00:00:00Z",
    "advisory" : "RHSA-2023:1092",
    "cpe" : "cpe:/a:redhat:rhel_extras_rt:7",
    "package" : "kernel-rt-0:3.10.0-1160.88.1.rt56.1233.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2023-03-07T00:00:00Z",
    "advisory" : "RHSA-2023:1091",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-0:3.10.0-1160.88.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2023-03-07T00:00:00Z",
    "advisory" : "RHSA-2023:1101",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kpatch-patch"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.4 Advanced Update Support",
    "release_date" : "2023-04-11T00:00:00Z",
    "advisory" : "RHSA-2023:1706",
    "cpe" : "cpe:/o:redhat:rhel_aus:7.4",
    "package" : "kernel-0:3.10.0-693.107.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.6 Advanced Update Support(Disable again in 2026 - SPRHEL-7118)",
    "release_date" : "2023-04-11T00:00:00Z",
    "advisory" : "RHSA-2023:1705",
    "cpe" : "cpe:/o:redhat:rhel_aus:7.6",
    "package" : "kernel-0:3.10.0-957.100.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.7 Advanced Update Support",
    "release_date" : "2023-02-28T00:00:00Z",
    "advisory" : "RHSA-2023:0944",
    "cpe" : "cpe:/o:redhat:rhel_aus:7.7",
    "package" : "kernel-0:3.10.0-1062.71.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.7 Telco Extended Update Support",
    "release_date" : "2023-02-28T00:00:00Z",
    "advisory" : "RHSA-2023:0944",
    "cpe" : "cpe:/o:redhat:rhel_tus:7.7",
    "package" : "kernel-0:3.10.0-1062.71.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.7 Update Services for SAP Solutions",
    "release_date" : "2023-02-28T00:00:00Z",
    "advisory" : "RHSA-2023:0944",
    "cpe" : "cpe:/o:redhat:rhel_e4s:7.7",
    "package" : "kernel-0:3.10.0-1062.71.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.7 Update Services for SAP Solutions",
    "release_date" : "2023-02-28T00:00:00Z",
    "advisory" : "RHSA-2023:0945",
    "cpe" : "cpe:/o:redhat:rhel_e4s:7.7",
    "package" : "kpatch-patch"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2023-04-04T00:00:00Z",
    "advisory" : "RHSA-2023:1584",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8::nfv",
    "package" : "kernel-rt-0:4.18.0-425.19.2.rt7.230.el8_7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2023-04-04T00:00:00Z",
    "advisory" : "RHSA-2023:1566",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "kernel-0:4.18.0-425.19.2.el8_7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2023-04-05T00:00:00Z",
    "advisory" : "RHSA-2023:1659",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "kpatch-patch"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions",
    "release_date" : "2023-02-21T00:00:00Z",
    "advisory" : "RHSA-2023:0856",
    "cpe" : "cpe:/o:redhat:rhel_e4s:8.1",
    "package" : "kernel-0:4.18.0-147.80.1.el8_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions",
    "release_date" : "2023-02-21T00:00:00Z",
    "advisory" : "RHSA-2023:0858",
    "cpe" : "cpe:/o:redhat:rhel_e4s:8.1",
    "package" : "kpatch-patch"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Advanced Update Support",
    "release_date" : "2023-03-07T00:00:00Z",
    "advisory" : "RHSA-2023:1109",
    "cpe" : "cpe:/o:redhat:rhel_aus:8.2",
    "package" : "kernel-0:4.18.0-193.100.1.el8_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Telecommunications Update Service",
    "release_date" : "2023-03-07T00:00:00Z",
    "advisory" : "RHSA-2023:1110",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.2::nfv",
    "package" : "kernel-rt-0:4.18.0-193.100.1.rt13.151.el8_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Telecommunications Update Service",
    "release_date" : "2023-03-07T00:00:00Z",
    "advisory" : "RHSA-2023:1109",
    "cpe" : "cpe:/o:redhat:rhel_tus:8.2",
    "package" : "kernel-0:4.18.0-193.100.1.el8_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions",
    "release_date" : "2023-03-07T00:00:00Z",
    "advisory" : "RHSA-2023:1103",
    "cpe" : "cpe:/o:redhat:rhel_e4s:8.2",
    "package" : "kpatch-patch"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions",
    "release_date" : "2023-03-07T00:00:00Z",
    "advisory" : "RHSA-2023:1109",
    "cpe" : "cpe:/o:redhat:rhel_e4s:8.2",
    "package" : "kernel-0:4.18.0-193.100.1.el8_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Extended Update Support",
    "release_date" : "2023-03-14T00:00:00Z",
    "advisory" : "RHSA-2023:1220",
    "cpe" : "cpe:/a:redhat:rhel_eus:8.4::nfv",
    "package" : "kernel-rt-0:4.18.0-305.82.1.rt7.154.el8_4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Extended Update Support",
    "release_date" : "2023-03-14T00:00:00Z",
    "advisory" : "RHSA-2023:1221",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.4",
    "package" : "kernel-0:4.18.0-305.82.1.el8_4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Extended Update Support",
    "release_date" : "2023-03-15T00:00:00Z",
    "advisory" : "RHSA-2023:1251",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.4",
    "package" : "kpatch-patch"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Extended Update Support",
    "release_date" : "2023-05-31T00:00:00Z",
    "advisory" : "RHSA-2023:3388",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.6",
    "package" : "kernel-0:4.18.0-372.57.1.el8_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Extended Update Support",
    "release_date" : "2023-06-05T00:00:00Z",
    "advisory" : "RHSA-2023:3431",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.6",
    "package" : "kpatch-patch"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-02-28T00:00:00Z",
    "advisory" : "RHSA-2023:0951",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-162.18.1.el9_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-02-28T00:00:00Z",
    "advisory" : "RHSA-2023:0979",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9::nfv",
    "package" : "kernel-rt-0:5.14.0-162.18.1.rt21.181.el9_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-02-28T00:00:00Z",
    "advisory" : "RHSA-2023:0951",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-162.18.1.el9_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-02-28T00:00:00Z",
    "advisory" : "RHSA-2023:1008",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kpatch-patch"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.0 Extended Update Support",
    "release_date" : "2023-03-14T00:00:00Z",
    "advisory" : "RHSA-2023:1202",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.0",
    "package" : "kernel-0:5.14.0-70.49.1.el9_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.0 Extended Update Support",
    "release_date" : "2023-03-14T00:00:00Z",
    "advisory" : "RHSA-2023:1203",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.0::nfv",
    "package" : "kernel-rt-0:5.14.0-70.49.1.rt21.120.el9_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.0 Extended Update Support",
    "release_date" : "2023-03-23T00:00:00Z",
    "advisory" : "RHSA-2023:1435",
    "cpe" : "cpe:/o:redhat:rhel_eus:9.0",
    "package" : "kpatch-patch"
  }, {
    "product_name" : "Red Hat Virtualization 4 for Red Hat Enterprise Linux 8",
    "release_date" : "2023-05-31T00:00:00Z",
    "advisory" : "RHSA-2023:3388",
    "cpe" : "cpe:/o:redhat:rhev_hypervisor:4.4::el8",
    "package" : "kernel-0:4.18.0-372.57.1.el8_6"
  }, {
    "product_name" : "Red Hat Virtualization 4 for Red Hat Enterprise Linux 8",
    "release_date" : "2023-06-06T00:00:00Z",
    "advisory" : "RHSA-2023:3491",
    "cpe" : "cpe:/o:redhat:rhev_hypervisor:4.4::el8",
    "package" : "redhat-virtualization-host-0:4.5.3-202306050942_8.6"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2022-4378\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-4378\nhttps://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-6.0/proc-avoid-integer-type-confusion-in-get_proc_long.patch\nhttps://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-6.0/proc-proc_skip_spaces-shouldn-t-think-it-is-working-on-c-strings.patch\nhttps://seclists.org/oss-sec/2022/q4/178" ],
  "name" : "CVE-2022-4378",
  "mitigation" : {
    "value" : "A possible workaround is preventing regular users from accessing sysctl files (such as /proc/sys/net/ipv4/tcp_rmem and similar). Also, preventing a user from increasing privileges with commands such as \"unshare -rn\" (that allows obtaining net namespace privileges required to access /proc/sys/net/ipv4/tcp_rmem).",
    "lang" : "en:us"
  },
  "csaw" : false
}