FreeBSD Ports: ntp

# SPDX-FileCopyrightText: 2009 E-Soft Inc.
# 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.64046");
  script_version("2023-07-26T05:05:09+0000");
  script_tag(name:"last_modification", value:"2023-07-26 05:05:09 +0000 (Wed, 26 Jul 2023)");
  script_tag(name:"creation_date", value:"2009-05-25 20:59:33 +0200 (Mon, 25 May 2009)");
  script_cve_id("CVE-2009-0159", "CVE-2009-1252");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_name("FreeBSD Ports: ntp");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 E-Soft Inc.");
  script_family("FreeBSD Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/freebsd", "ssh/login/freebsdrel");

  script_tag(name:"insight", value:"The following package is affected: ntp

CVE-2009-0159
Stack-based buffer overflow in the cookedprint function in ntpq/ntpq.c
in ntpq in NTP before 4.2.4p7-RC2 allows remote NTP servers to execute
arbitrary code via a crafted response.

CVE-2009-1252
Stack-based buffer overflow in the crypto_recv function in
ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74,
when OpenSSL and autokey are enabled, allows remote attackers to
execute arbitrary code via a crafted packet containing an extension
field.");

  script_tag(name:"solution", value:"Update your system with the appropriate patches or
  software upgrades.");

  script_xref(name:"URL", value:"http://www.kb.cert.org/vuls/id/853097");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/35017");
  script_xref(name:"URL", value:"http://www.vuxml.org/freebsd/4175c811-f690-4898-87c5-755b3cf1bac6.html");

  script_tag(name:"summary", value:"The remote host is missing an update to the system
  as announced in the referenced advisory.");

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

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-bsd.inc");

vuln = FALSE;
txt = "";

bver = portver(pkg:"ntp");
if(!isnull(bver) && revcomp(a:bver, b:"4.2.4p7")<0) {
  txt += 'Package ntp version ' + bver + ' is installed which is known to be vulnerable.\n';
  vuln = TRUE;
}

if(vuln) {
  security_message(data:txt);
} else if (__pkg_match) {
  exit(99);
}