Mageia: Security Advisory (MGASA-2016-0219)

# SPDX-FileCopyrightText: 2022 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.1.10.2016.0219");
  script_cve_id("CVE-2015-8139", "CVE-2016-4954", "CVE-2016-4955", "CVE-2016-4956");
  script_tag(name:"creation_date", value:"2022-01-28 10:58:44 +0000 (Fri, 28 Jan 2022)");
  script_version("2024-02-02T05:06:09+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:09 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2016-07-05 18:25:17 +0000 (Tue, 05 Jul 2016)");

  script_name("Mageia: Security Advisory (MGASA-2016-0219)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 Greenbone AG");
  script_family("Mageia Linux Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/mageia_linux", "ssh/login/release", re:"ssh/login/release=MAGEIA5");

  script_xref(name:"Advisory-ID", value:"MGASA-2016-0219");
  script_xref(name:"URL", value:"https://advisories.mageia.org/MGASA-2016-0219.html");
  script_xref(name:"URL", value:"https://bugs.mageia.org/show_bug.cgi?id=18617");
  script_xref(name:"URL", value:"http://support.ntp.org/bin/view/Main/SecurityNotice#June_2016_ntp_4_2_8p8_NTP_Securi");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'ntp' package(s) announced via the MGASA-2016-0219 advisory.");

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

  script_tag(name:"insight", value:"ntpq and ntpdc disclose the origin timestamp to unauthenticated clients,
which may allow an attacker to impersonate a legitimate peer
(CVE-2015-8139).

An attacker who is able to spoof packets with correct origin timestamps
from enough servers before the expected response packets arrive at the
target machine can affect some peer variables and, for example, cause a
false leap indication to be set (CVE-2016-4954).

An attacker who is able to spoof a packet with a correct origin timestamp
before the expected response packet arrives at the target machine can send
a CRYPTO_NAK or a bad MAC and cause the association's peer variables to be
cleared. If this can be done often enough, it will prevent that
association from working (CVE-2016-4955).

The fix for CVE-2016-1548 does not cover broadcast associations, so
broadcast clients can be triggered to flip into interleave mode
(CVE-2016-4956).");

  script_tag(name:"affected", value:"'ntp' package(s) on Mageia 5.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

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

  exit(0);
}

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

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "MAGEIA5") {

  if(!isnull(res = isrpmvuln(pkg:"ntp", rpm:"ntp~4.2.6p5~24.6.mga5", rls:"MAGEIA5"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ntp-client", rpm:"ntp-client~4.2.6p5~24.6.mga5", rls:"MAGEIA5"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ntp-doc", rpm:"ntp-doc~4.2.6p5~24.6.mga5", rls:"MAGEIA5"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);