CentOS Update for kernel CESA-2017:0892 centos6

# SPDX-FileCopyrightText: 2017 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("1.3.6.1.4.1.25623.1.0.882688");
  script_version("2023-07-12T05:05:04+0000");
  script_tag(name:"last_modification", value:"2023-07-12 05:05:04 +0000 (Wed, 12 Jul 2023)");
  script_tag(name:"creation_date", value:"2017-04-13 06:33:21 +0200 (Thu, 13 Apr 2017)");
  script_cve_id("CVE-2016-7910", "CVE-2017-2636");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-01-19 16:08:00 +0000 (Thu, 19 Jan 2023)");
  script_tag(name:"qod_type", value:"package");
  script_name("CentOS Update for kernel CESA-2017:0892 centos6");
  script_tag(name:"summary", value:"Check the version of kernel");
  script_tag(name:"vuldetect", value:"Checks if a vulnerable 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):

  * A race condition flaw was found in the N_HLDC Linux kernel driver when
accessing n_hdlc.tbuf list that can lead to double free. A local,
unprivileged user able to set the HDLC line discipline on the tty device
could use this flaw to increase their privileges on the system.
(CVE-2017-2636, Important)

  * A flaw was found in the Linux kernel's implementation of seq_file where a
local attacker could manipulate memory in the put() function pointer. This
could lead to memory corruption and possible privileged escalation.
(CVE-2016-7910, Moderate)

Red Hat would like to thank Alexander Popov for reporting CVE-2017-2636.

Bug Fix(es):

  * Previously, Chelsio firmware included an incorrectly-formatted firmware
bin file. As a consequence, the firmware could not be flashed. This update
provides a firmware bin file that is formatted correctly. As a result,
Chelsio firmware can now be flashed successfully. (BZ#1433865)

  * When multiple simultaneous processes attempted to read from the
/proc/stat file, spinlock overhead was generated on Non-Uniform Memory
Access (NUMA) systems. Consequently, a large amount of CPU was consumed.
With this update, the underlying source code has been fixed to avoid taking
spinlock when the interrupt line does not exist. As a result, the spinlock
overhead is now generated less often, and multiple simultaneous processes
can now read /proc/stat without consuming a large amount of CPU.
(BZ#1428106)");
  script_tag(name:"affected", value:"kernel on CentOS 6");
  script_tag(name:"solution", value:"Please Install the Updated Packages.");

  script_xref(name:"CESA", value:"2017:0892");
  script_xref(name:"URL", value:"http://lists.centos.org/pipermail/centos-announce/2017-April/022358.html");
  script_tag(name:"solution_type", value:"VendorFix");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 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");
  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";

if(release == "CentOS6")
{

  if ((res = isrpmvuln(pkg:"kernel", rpm:"kernel~2.6.32~696.1.1.el6", rls:"CentOS6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-abi-whitelists", rpm:"kernel-abi-whitelists~2.6.32~696.1.1.el6", rls:"CentOS6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-debug", rpm:"kernel-debug~2.6.32~696.1.1.el6", rls:"CentOS6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-debug-devel", rpm:"kernel-debug-devel~2.6.32~696.1.1.el6", rls:"CentOS6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-devel", rpm:"kernel-devel~2.6.32~696.1.1.el6", rls:"CentOS6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-doc", rpm:"kernel-doc~2.6.32~696.1.1.el6", rls:"CentOS6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-firmware", rpm:"kernel-firmware~2.6.32~696.1.1.el6", rls:"CentOS6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kernel-headers", rpm:"kernel-headers~2.6.32~696.1.1.el6", rls:"CentOS6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"perf", rpm:"perf~2.6.32~696.1.1.el6", rls:"CentOS6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"python-perf", rpm:"python-perf~2.6.32~696.1.1.el6", rls:"CentOS6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}