CentOS Update for kernel CESA-2019:4256 centos6

# 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("1.3.6.1.4.1.25623.1.0.883149");
  script_version("2025-01-21T05:37:33+0000");
  script_cve_id("CVE-2019-14821");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2025-01-21 05:37:33 +0000 (Tue, 21 Jan 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-06-02 15:22:00 +0000 (Wed, 02 Jun 2021)");
  script_tag(name:"creation_date", value:"2020-01-08 11:14:50 +0000 (Wed, 08 Jan 2020)");
  script_name("CentOS Update for kernel CESA-2019:4256 centos6");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone AG");
  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:"2019:4256");
  script_xref(name:"URL", value:"https://lists.centos.org/pipermail/centos-announce/2019-December/035585.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'kernel'
  package(s) announced via the CESA-2019:4256 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: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)

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):

  * KEYS: prevent creating a different user's keyrings RHEL-6.10 (BZ#1537371)

  * BUG: unable to handle kernel NULL pointer dereference at (null)
(BZ#1733760)

  * long I/O stalls with bnx2fc from not masking off scope bits of retry
delay value (BZ#1749512)");

  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~2.6.32~754.25.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-abi-whitelists", rpm:"kernel-abi-whitelists~2.6.32~754.25.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-debug", rpm:"kernel-debug~2.6.32~754.25.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-debug-devel", rpm:"kernel-debug-devel~2.6.32~754.25.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-devel", rpm:"kernel-devel~2.6.32~754.25.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-doc", rpm:"kernel-doc~2.6.32~754.25.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-firmware", rpm:"kernel-firmware~2.6.32~754.25.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-headers", rpm:"kernel-headers~2.6.32~754.25.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"perf", rpm:"perf~2.6.32~754.25.1.el6", rls:"CentOS6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python-perf", rpm:"python-perf~2.6.32~754.25.1.el6", rls:"CentOS6"))) {
    report += res;
  }

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

exit(0);