Huawei EulerOS: Security Advisory for nss-softokn (EulerOS-SA-2020-1754)

# Copyright (C) 2020 Greenbone Networks GmbH
# 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-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.1.2.2020.1754");
  script_version("2020-07-03T06:22:41+0000");
  script_cve_id("CVE-2018-0495", "CVE-2018-12404");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:N/A:N");
  script_tag(name:"last_modification", value:"2020-07-03 06:22:41 +0000 (Fri, 03 Jul 2020)");
  script_tag(name:"creation_date", value:"2020-07-03 06:22:41 +0000 (Fri, 03 Jul 2020)");
  script_name("Huawei EulerOS: Security Advisory for nss-softokn (EulerOS-SA-2020-1754)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
  script_family("Huawei EulerOS Local Security Checks");
  script_dependencies("gb_huawei_euleros_consolidation.nasl");
  script_mandatory_keys("ssh/login/euleros", "ssh/login/rpms", re:"ssh/login/release=EULEROSVIRT-3\.0\.6\.0");

  script_xref(name:"EulerOS-SA", value:"2020-1754");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2020-1754");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS
  'nss-softokn' package(s) announced via the EulerOS-SA-2020-1754 advisory.");

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

  script_tag(name:"insight", value:"A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) and affects all NSS versions prior to NSS 3.41.(CVE-2018-12404)

Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.(CVE-2018-0495)");

  script_tag(name:"affected", value:"'nss-softokn' package(s) on Huawei EulerOS Virtualization 3.0.6.0.");

  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 == "EULEROSVIRT-3.0.6.0") {

  if(!isnull(res = isrpmvuln(pkg:"nss-softokn", rpm:"nss-softokn~3.36.0~5.h8.eulerosv2r7", rls:"EULEROSVIRT-3.0.6.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"nss-softokn-freebl", rpm:"nss-softokn-freebl~3.36.0~5.h8.eulerosv2r7", rls:"EULEROSVIRT-3.0.6.0"))) {
    report += res;
  }

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

exit(0);