Juniper Networks Junos OS Sockets Library Buffer Overflow Vulnerability

# SPDX-FileCopyrightText: 2017 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/o:juniper:junos";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106942");
  script_version("2026-04-24T06:23:04+0000");
  script_tag(name:"last_modification", value:"2026-04-24 06:23:04 +0000 (Fri, 24 Apr 2026)");
  script_tag(name:"creation_date", value:"2017-07-13 10:12:57 +0700 (Thu, 13 Jul 2017)");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-10-09 23:26:00 +0000 (Wed, 09 Oct 2019)");

  script_cve_id("CVE-2017-2344");

  script_tag(name:"qod_type", value:"package");

  script_tag(name:"solution_type", value:"VendorFix");

  script_name("Juniper Networks Junos OS Sockets Library Buffer Overflow Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_family("JunOS Local Security Checks");
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_dependencies("gb_juniper_junos_consolidation.nasl");
  script_mandatory_keys("juniper/junos/detected");

  script_tag(name:"summary", value:"Junos OS is prone to a buffer overflow vulnerability in the sockets
  library.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable OS build is present on the target host.");

  script_tag(name:"insight", value:"A routine within an internal Junos OS sockets library is vulnerable to a
buffer overflow. Malicious exploitation of this issue may lead to a denial of service (kernel panic) or be
leveraged as a privilege escalation through local code execution. The routines are only accessible via programs
running on the device itself, and veriexec restricts arbitrary programs from running on Junos OS. There are no
known exploit vectors utilizing signed binaries shipped with Junos OS itself.");

  script_tag(name:"solution", value:"New builds of Junos OS software are available from Juniper.");

  script_xref(name:"URL", value:"http://kb.juniper.net/JSA10792");

  exit(0);
}

include("host_details.inc");
include("revisions-lib.inc");
include("version_func.inc");

if (!version = get_app_version(cpe: CPE, nofork: TRUE))
  exit(0);

if (version =~ "^12") {
  if ((revcomp(a: version, b: "12.1X46-D67") < 0) &&
      (revcomp(a: version, b: "12.1X46") >= 0)) {
    report = report_fixed_ver(installed_version: version, fixed_version: "12.1X46-D67");
    security_message(port: 0, data: report);
    exit(0);
  }
  else if ((revcomp(a: version, b: "12.3X48-D51") < 0) &&
           (revcomp(a: version, b: "12.3X48") >= 0)) {
    report = report_fixed_ver(installed_version: version, fixed_version: "12.3X48-D51");
    security_message(port: 0, data: report);
    exit(0);
  }
}

if (version =~ "^13") {
  if (revcomp(a: version, b: "13.3R10-S2") < 0) {
    report = report_fixed_ver(installed_version: version, fixed_version: "13.3R10-S2");
    security_message(port: 0, data: report);
    exit(0);
  }
}

if (version =~ "^14") {
  if ((revcomp(a: version, b: "14.1R9") < 0) &&
      (revcomp(a: version, b: "14.1R") >= 0)) {
    report = report_fixed_ver(installed_version: version, fixed_version: "14.1R9");
    security_message(port: 0, data: report);
    exit(0);
  }
  else if ((revcomp(a: version, b: "14.1X53-D45") < 0) &&
           (revcomp(a: version, b: "14.1X53") >= 0)) {
    report = report_fixed_ver(installed_version: version, fixed_version: "14.1X53-D454");
    security_message(port: 0, data: report);
    exit(0);
  }
  else if ((revcomp(a: version, b: "14.2R7-S7") < 0) &&
           (revcomp(a: version, b: "14.2R") >= 0)) {
    report = report_fixed_ver(installed_version: version, fixed_version: "14.2R7-S7");
    security_message(port: 0, data: report);
    exit(0);
  }
}

if (version =~ "^15") {
  if ((revcomp(a: version, b: "15.1F2-S18") < 0) &&
      (revcomp(a: version, b: "15.1F2") >= 0)) {
    report = report_fixed_ver(installed_version: version, fixed_version: "15.1F2-S18");
    security_message(port: 0, data: report);
    exit(0);
  }
  else if ((revcomp(a: version, b: "15.1F6-S7") < 0) &&
           (revcomp(a: version, b: "15.1F6") >= 0)) {
    report = report_fixed_ver(installed_version: version, fixed_version: "15.1F6-S7");
    security_message(port: 0, data: report);
    exit(0);
  }
  else if ((revcomp(a: version, b: "15.1R7") < 0) &&
           (revcomp(a: version, b: "15.1R") >= 0)) {
    report = report_fixed_ver(installed_version: version, fixed_version: "15.1R7");
    security_message(port: 0, data: report);
    exit(0);
  }
  else if ((revcomp(a: version, b: "15.1X49-D100") < 0) &&
           (revcomp(a: version, b: "15.1X49") >= 0)) {
    report = report_fixed_ver(installed_version: version, fixed_version: "15.1X49-D100");
    security_message(port: 0, data: report);
    exit(0);
  }
  else if ((revcomp(a: version, b: "15.1X53-D47") < 0) &&
           (revcomp(a: version, b: "15.1X53") >= 0)) {
    report = report_fixed_ver(installed_version: version, fixed_version: "15.1X53-D47");
    security_message(port: 0, data: report);
    exit(0);
  }
}

if (version =~ "^16") {
  if (revcomp(a: version, b: "16.1R5") < 0) {
    report = report_fixed_ver(installed_version: version, fixed_version: "16.1R5");
    security_message(port: 0, data: report);
    exit(0);
  }
  else if ((revcomp(a: version, b: "16.2R2") < 0) &&
           (revcomp(a: version, b: "16.2R") >= 0)) {
    report = report_fixed_ver(installed_version: version, fixed_version: "16.2R2");
    security_message(port: 0, data: report);
    exit(0);
  }
}

if (version =~ "^17") {
  if (revcomp(a: version, b: "17.1R2") < 0) {
    report = report_fixed_ver(installed_version: version, fixed_version: "17.1R2");
    security_message(port: 0, data: report);
    exit(0);
  }
  else if ((revcomp(a: version, b: "17.2R2") < 0) &&
           (revcomp(a: version, b: "17.2R") >= 0)) {
    report = report_fixed_ver(installed_version: version, fixed_version: "17.2R2");
    security_message(port: 0, data: report);
    exit(0);
  }
}

exit(99);