CentOS: Security Advisory for qemu-guest-agent (CESA-2020:0775)

# 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("1.3.6.1.4.1.25623.1.0.883198");
  script_version("2020-07-21T08:11:15+0000");
  script_cve_id("CVE-2019-14378", "CVE-2019-15890", "CVE-2020-7039");
  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_tag(name:"last_modification", value:"2020-07-21 10:01:45 +0000 (Tue, 21 Jul 2020)");
  script_tag(name:"creation_date", value:"2020-03-11 04:00:37 +0000 (Wed, 11 Mar 2020)");
  script_name("CentOS: Security Advisory for qemu-guest-agent (CESA-2020:0775)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
  script_family("CentOS Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/centos", "ssh/login/rpms", re:"ssh/login/release=CentOS6");

  script_xref(name:"CESA", value:"2020:0775");
  script_xref(name:"URL", value:"https://lists.centos.org/pipermail/centos-announce/2020-March/035657.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'qemu-guest-agent'
  package(s) announced via the CESA-2020:0775 advisory.");

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

  script_tag(name:"insight", value:"Kernel-based Virtual Machine (KVM) is a full virtualization solution for
Linux on a variety of architectures. The qemu-kvm packages provide the
user-space component for running virtual machines that use KVM.

Security Fix(es):

  * QEMU: slirp: heap buffer overflow during packet reassembly
(CVE-2019-14378)

  * QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu()
(CVE-2020-7039)

  * QEMU: Slirp: use-after-free during packet reassembly (CVE-2019-15890)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.");

  script_tag(name:"affected", value:"'qemu-guest-agent' package(s) on CentOS 6.");

  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 == "CentOS6") {

  if(!isnull(res = isrpmvuln(pkg:"qemu-guest-agent", rpm:"qemu-guest-agent~0.12.1.2~2.506.el6_10.6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-img", rpm:"qemu-img~0.12.1.2~2.506.el6_10.6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-kvm", rpm:"qemu-kvm~0.12.1.2~2.506.el6_10.6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-kvm-tools", rpm:"qemu-kvm-tools~0.12.1.2~2.506.el6_10.6", rls:"CentOS6"))) {
    report += res;
  }

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

exit(0);