Huawei EulerOS: Security Advisory for nettle (EulerOS-SA-2020-1752)

# SPDX-FileCopyrightText: 2020 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("1.3.6.1.4.1.25623.1.1.2.2020.1752");
  script_cve_id("CVE-2018-16869");
  script_tag(name:"creation_date", value:"2020-07-03 06:22:39 +0000 (Fri, 03 Jul 2020)");
  script_version("2024-02-05T14:36:56+0000");
  script_tag(name:"last_modification", value:"2024-02-05 14:36:56 +0000 (Mon, 05 Feb 2024)");
  script_tag(name:"cvss_base", value:"3.3");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:P/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-01-31 19:46:08 +0000 (Thu, 31 Jan 2019)");

  script_name("Huawei EulerOS: Security Advisory for nettle (EulerOS-SA-2020-1752)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone AG");
  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:"Advisory-ID", value:"EulerOS-SA-2020-1752");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2020-1752");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'nettle' package(s) announced via the EulerOS-SA-2020-1752 advisory.");

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

  script_tag(name:"insight", value:"A Bleichenbacher type side-channel based padding oracle attack was found in the way nettle handles endian conversion of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run a process on the same physical core as the victim process, could use this flaw extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.(CVE-2018-16869)");

  script_tag(name:"affected", value:"'nettle' 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:"nettle", rpm:"nettle~2.7.1~8.h1.eulerosv2r7", rls:"EULEROSVIRT-3.0.6.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"nettle-devel", rpm:"nettle-devel~2.7.1~8.h1.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);