CentOS: Security Advisory for kernel (CESA-2020:0790)

# 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("1.3.6.1.4.1.25623.1.0.883200");
  script_version("2021-07-05T11:01:33+0000");
  script_cve_id("CVE-2019-17055", "CVE-2019-17133");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"2021-07-05 11:01:33 +0000 (Mon, 05 Jul 2021)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-06-14 18:15:00 +0000 (Mon, 14 Jun 2021)");
  script_tag(name:"creation_date", value:"2020-03-13 04:00:21 +0000 (Fri, 13 Mar 2020)");
  script_name("CentOS: Security Advisory for kernel (CESA-2020:0790)");
  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:"2020:0790");
  script_xref(name:"URL", value:"https://lists.centos.org/pipermail/centos-announce/2020-March/035659.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'kernel'
  package(s) announced via the CESA-2020:0790 advisory.");

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

  script_tag(name:"insight", value:"The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es):

  * kernel: buffer overflow in cfg80211_mgd_wext_giwessid in
net/wireless/wext-sme.c (CVE-2019-17133)

  * kernel: unprivileged users able to create RAW sockets in AF_ISDN  network
protocol. (CVE-2019-17055)

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.

Bug Fix(es):

  * LACP bond does not function because bonding driver sees slave speed &
duplex as Unknown (BZ#1772779)

  * ixgbevf guess causes excessive interrupts in hypervisor due to get link
settings (BZ#1795404)");

  script_tag(name:"affected", value:"'kernel' 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:"kernel", rpm:"kernel~2.6.32~754.28.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-abi-whitelists", rpm:"kernel-abi-whitelists~2.6.32~754.28.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-debug", rpm:"kernel-debug~2.6.32~754.28.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-debug-devel", rpm:"kernel-debug-devel~2.6.32~754.28.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-devel", rpm:"kernel-devel~2.6.32~754.28.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-doc", rpm:"kernel-doc~2.6.32~754.28.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-firmware", rpm:"kernel-firmware~2.6.32~754.28.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-headers", rpm:"kernel-headers~2.6.32~754.28.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"perf", rpm:"perf~2.6.32~754.28.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python-perf", rpm:"python-perf~2.6.32~754.28.1.el6", rls:"CentOS6"))) {
    report += res;
  }

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

exit(0);