Debian DSA-2949-1 : linux - security update

2014-06-06T00:00:00
ID DEBIAN_DSA-2949.NASL
Type nessus
Reporter This script is Copyright (C) 2014-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2021-01-11T00:00:00

Description

Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation :

  • CVE-2014-3144/ CVE-2014-3145 A local user can cause a denial of service (system crash) via crafted BPF instructions.

  • CVE-2014-3153 Pinkie Pie discovered an issue in the futex subsystem that allows a local user to gain ring 0 control via the futex syscall. An unprivileged user could use this flaw to crash the kernel (resulting in denial of service) or for privilege escalation.

                                        
                                            #%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2949. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(74336);
  script_version("1.18");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2014-3144", "CVE-2014-3145", "CVE-2014-3153");
  script_bugtraq_id(67309, 67321);
  script_xref(name:"DSA", value:"2949");

  script_name(english:"Debian DSA-2949-1 : linux - security update");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several vulnerabilities have been discovered in the Linux kernel that
may lead to a denial of service or privilege escalation :

  - CVE-2014-3144/ CVE-2014-3145
    A local user can cause a denial of service (system
    crash) via crafted BPF instructions.

  - CVE-2014-3153
    Pinkie Pie discovered an issue in the futex subsystem
    that allows a local user to gain ring 0 control via the
    futex syscall. An unprivileged user could use this flaw
    to crash the kernel (resulting in denial of service) or
    for privilege escalation."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2014-3144"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2014-3145"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2014-3153"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2014/dsa-2949"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the linux packages.

For the stable distribution (wheezy), these problems have been fixed
in version 3.2.57-3+deb7u2."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC: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:"metasploit_name", value:'Android "Towelroot" Futex Requeue Kernel Exploit');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/05/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/06/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/06");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"7.0", prefix:"linux", reference:"3.2.57-3+deb7u2")) flag++;

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