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nessusThis script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.SL_20100921_KERNEL_ON_SL5_X.NASL
HistoryAug 01, 2012 - 12:00 a.m.

Scientific Linux Security Update : kernel on SL5.x i386/x86_64

2012-08-0100:00:00
This script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
27

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0

Percentile

5.2%

This update fixes the following security issue :

  • The compat_alloc_user_space() function in the Linux kernel 32/64-bit compatibility layer implementation was missing sanity checks. This function could be abused in other areas of the Linux kernel if its length argument can be controlled from user-space. On 64-bit systems, a local, unprivileged user could use this flaw to escalate their privileges. (CVE-2010-3081, Important)

The system must be rebooted for this update to take effect.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

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

if (description)
{
  script_id(60859);
  script_version("1.14");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2010-3081");

  script_name(english:"Scientific Linux Security Update : kernel on SL5.x i386/x86_64");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Scientific Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update fixes the following security issue :

  - The compat_alloc_user_space() function in the Linux
    kernel 32/64-bit compatibility layer implementation was
    missing sanity checks. This function could be abused in
    other areas of the Linux kernel if its length argument
    can be controlled from user-space. On 64-bit systems, a
    local, unprivileged user could use this flaw to escalate
    their privileges. (CVE-2010-3081, Important)

The system must be rebooted for this update to take effect."
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1009&L=scientific-linux-errata&T=0&P=1900
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?cd527344"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2010/09/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Scientific Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "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);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
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 (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);


flag = 0;
if (rpm_check(release:"SL5", reference:"kernel-2.6.18-194.11.4.el5")) flag++;
if (rpm_check(release:"SL5", cpu:"i386", reference:"kernel-PAE-2.6.18-194.11.4.el5")) flag++;
if (rpm_check(release:"SL5", cpu:"i386", reference:"kernel-PAE-devel-2.6.18-194.11.4.el5")) flag++;
if (rpm_check(release:"SL5", reference:"kernel-debug-2.6.18-194.11.4.el5")) flag++;
if (rpm_check(release:"SL5", reference:"kernel-debug-devel-2.6.18-194.11.4.el5")) flag++;
if (rpm_check(release:"SL5", reference:"kernel-devel-2.6.18-194.11.4.el5")) flag++;
if (rpm_check(release:"SL5", reference:"kernel-doc-2.6.18-194.11.4.el5")) flag++;
if (rpm_check(release:"SL5", reference:"kernel-headers-2.6.18-194.11.4.el5")) flag++;
if (rpm_check(release:"SL5", reference:"kernel-xen-2.6.18-194.11.4.el5")) flag++;
if (rpm_check(release:"SL5", reference:"kernel-xen-devel-2.6.18-194.11.4.el5")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0

Percentile

5.2%