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nessusThis script is Copyright (C) 2013-2021 Tenable Network Security, Inc.ORACLELINUX_ELSA-2013-1790-1.NASL
HistoryDec 08, 2013 - 12:00 a.m.

Oracle Linux 5 : kernel (ELSA-2013-1790-1)

2013-12-0800:00:00
This script is Copyright (C) 2013-2021 Tenable Network Security, Inc.
www.tenable.com
10

1.5 Low

CVSS2

Access Vector

Access Complexity

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:M/Au:S/C:P/I:N/A:N

0.001 Low

EPSS

Percentile

25.4%

From Red Hat Security Advisory 2013:1790 :

Updated kernel packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

  • An information leak flaw was found in the way the Xen hypervisor handled error conditions when reading guest memory during certain guest-originated operations, such as port or memory mapped I/O writes.
    A privileged user in a fully-virtualized guest could use this flaw to leak hypervisor stack memory to a guest. (CVE-2013-4355, Moderate)

Red Hat would like to thank the Xen project for reporting this issue.

This update also fixes the following bugs :

  • A previous fix to the kernel did not contain a memory barrier in the percpu_up_write() function. Consequently, under certain circumstances, a race condition could occur leading to memory corruption and a subsequent kernel panic. This update introduces a new memory barrier pair, light_mb() and heavy_mb(), for per-CPU basis read and write semaphores (percpu-rw-semaphores) ensuring that the race condition can no longer occur. In addition, the read path performance of ‘percpu-rw-semaphores’ has been improved. (BZ#1014715)

  • Due to a bug in the tg3 driver, systems that had the Wake-on-LAN (WOL) feature enabled on their NICs could not have been woken up from suspension or hibernation using WOL. A missing pci_wake_from_d3() function call has been added to the tg3 driver, which ensures that WOL functions properly by setting the PME_ENABLE bit. (BZ#1014973)

  • Due to an incorrect test condition in the mpt2sas driver, the driver was unable to catch failures to map a SCSI scatter-gather list. The test condition has been corrected so that the mpt2sas driver now handles SCSI scatter-gather mapping failures as expected. (BZ#1018458)

  • A previous patch to the kernel introduced the ‘VLAN tag re-insertion’ workaround to resolve a problem with incorrectly handled VLAN-tagged packets with no assigned VLAN group while the be2net driver was in promiscuous mode. However, this solution led to packet corruption and a subsequent kernel oops if such a processed packed was a GRO packet. Therefore, a patch has been applied to restrict VLAN tag re-insertion only to non-GRO packets. The be2net driver now processes VLAN-tagged packets with no assigned VLAN group correctly in this situation. (BZ#1023348)

All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2013:1790 and 
# Oracle Linux Security Advisory ELSA-2013-1790-1 respectively.
#

if (NASL_LEVEL < 3000) exit(0);

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(71251);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2013-4355");
  script_bugtraq_id(62708);
  script_xref(name:"RHSA", value:"2013:1790");

  script_name(english:"Oracle Linux 5 : kernel (ELSA-2013-1790-1)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2013:1790 :

Updated kernel packages that fix one security issue and several bugs
are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having
moderate security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

* An information leak flaw was found in the way the Xen hypervisor
handled error conditions when reading guest memory during certain
guest-originated operations, such as port or memory mapped I/O writes.
A privileged user in a fully-virtualized guest could use this flaw to
leak hypervisor stack memory to a guest. (CVE-2013-4355, Moderate)

Red Hat would like to thank the Xen project for reporting this issue.

This update also fixes the following bugs :

* A previous fix to the kernel did not contain a memory barrier in the
percpu_up_write() function. Consequently, under certain circumstances,
a race condition could occur leading to memory corruption and a
subsequent kernel panic. This update introduces a new memory barrier
pair, light_mb() and heavy_mb(), for per-CPU basis read and write
semaphores (percpu-rw-semaphores) ensuring that the race condition can
no longer occur. In addition, the read path performance of
'percpu-rw-semaphores' has been improved. (BZ#1014715)

* Due to a bug in the tg3 driver, systems that had the Wake-on-LAN
(WOL) feature enabled on their NICs could not have been woken up from
suspension or hibernation using WOL. A missing pci_wake_from_d3()
function call has been added to the tg3 driver, which ensures that WOL
functions properly by setting the PME_ENABLE bit. (BZ#1014973)

* Due to an incorrect test condition in the mpt2sas driver, the driver
was unable to catch failures to map a SCSI scatter-gather list. The
test condition has been corrected so that the mpt2sas driver now
handles SCSI scatter-gather mapping failures as expected. (BZ#1018458)

* A previous patch to the kernel introduced the 'VLAN tag
re-insertion' workaround to resolve a problem with incorrectly handled
VLAN-tagged packets with no assigned VLAN group while the be2net
driver was in promiscuous mode. However, this solution led to packet
corruption and a subsequent kernel oops if such a processed packed was
a GRO packet. Therefore, a patch has been applied to restrict VLAN tag
re-insertion only to non-GRO packets. The be2net driver now processes
VLAN-tagged packets with no assigned VLAN group correctly in this
situation. (BZ#1023348)

All kernel users are advised to upgrade to these updated packages,
which contain backported patches to correct these issues. The system
must be rebooted for this update to take effect."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2013-December/003857.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected kernel packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:S/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-PAE");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-PAE-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-xen-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:5");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/12/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/12/08");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2021 Tenable Network Security, Inc.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !eregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = eregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! ereg(pattern:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 5", "Oracle Linux " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);

flag = 0;
if (rpm_exists(release:"EL5", rpm:"kernel-2.6.18") && rpm_check(release:"EL5", reference:"kernel-2.6.18-371.3.1.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-PAE-2.6.18") && rpm_check(release:"EL5", cpu:"i386", reference:"kernel-PAE-2.6.18-371.3.1.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-PAE-devel-2.6.18") && rpm_check(release:"EL5", cpu:"i386", reference:"kernel-PAE-devel-2.6.18-371.3.1.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-debug-2.6.18") && rpm_check(release:"EL5", reference:"kernel-debug-2.6.18-371.3.1.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-debug-devel-2.6.18") && rpm_check(release:"EL5", reference:"kernel-debug-devel-2.6.18-371.3.1.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-devel-2.6.18") && rpm_check(release:"EL5", reference:"kernel-devel-2.6.18-371.3.1.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-doc-2.6.18") && rpm_check(release:"EL5", reference:"kernel-doc-2.6.18-371.3.1.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-headers-2.6.18") && rpm_check(release:"EL5", reference:"kernel-headers-2.6.18-371.3.1.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-xen-2.6.18") && rpm_check(release:"EL5", reference:"kernel-xen-2.6.18-371.3.1.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-xen-devel-2.6.18") && rpm_check(release:"EL5", reference:"kernel-xen-devel-2.6.18-371.3.1.0.1.el5")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get());
  else security_note(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "affected kernel");
}
VendorProductVersionCPE
oraclelinuxkernelp-cpe:/a:oracle:linux:kernel
oraclelinuxkernel-paep-cpe:/a:oracle:linux:kernel-pae
oraclelinuxkernel-pae-develp-cpe:/a:oracle:linux:kernel-pae-devel
oraclelinuxkernel-debugp-cpe:/a:oracle:linux:kernel-debug
oraclelinuxkernel-debug-develp-cpe:/a:oracle:linux:kernel-debug-devel
oraclelinuxkernel-develp-cpe:/a:oracle:linux:kernel-devel
oraclelinuxkernel-docp-cpe:/a:oracle:linux:kernel-doc
oraclelinuxkernel-headersp-cpe:/a:oracle:linux:kernel-headers
oraclelinuxkernel-xenp-cpe:/a:oracle:linux:kernel-xen
oraclelinuxkernel-xen-develp-cpe:/a:oracle:linux:kernel-xen-devel
Rows per page:
1-10 of 111

1.5 Low

CVSS2

Access Vector

Access Complexity

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:M/Au:S/C:P/I:N/A:N

0.001 Low

EPSS

Percentile

25.4%