Vulnerabilities > CVE-2016-4804 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products

047910
CVSS 6.2 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
HIGH
local
low complexity
dosfstools-project
opensuse
canonical
CWE-119
nessus
NVD
Published: 2016-06-03
Updated: 2020-05-30

Summary

The read_boot function in boot.c in dosfstools before 4.0 allows attackers to cause a denial of service (crash) via a crafted filesystem, which triggers a heap-based buffer overflow in the (1) read_fat function or an out-of-bounds heap read in (2) get_fat function.

Vulnerable Configurations

Part Description Count
Application
Dosfstools_Project
1
OS
Opensuse
2
OS
Canonical
4

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2016-1045.NASL
    descriptiondosfstools was updated to fix two security issues. These security issues were fixed : - CVE-2015-8872: The set_fat function in fat.c in dosfstools might have allowed attackers to corrupt a FAT12 filesystem or cause a denial of service (invalid memory read and crash) by writing an odd number of clusters to the third to last entry on a FAT12 filesystem, which triggers an
    last seen2020-06-05
    modified2016-09-06
    plugin id93335
    published2016-09-06
    reporterThis script is Copyright (C) 2016-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/93335
    titleopenSUSE Security Update : dosfstools (openSUSE-2016-1045)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2016-1045.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(93335);
  script_version("2.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2015-8872", "CVE-2016-4804");

  script_name(english:"openSUSE Security Update : dosfstools (openSUSE-2016-1045)");
  script_summary(english:"Check for the openSUSE-2016-1045 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"dosfstools was updated to fix two security issues.

These security issues were fixed :

  - CVE-2015-8872: The set_fat function in fat.c in
    dosfstools might have allowed attackers to corrupt a
    FAT12 filesystem or cause a denial of service (invalid
    memory read and crash) by writing an odd number of
    clusters to the third to last entry on a FAT12
    filesystem, which triggers an 'off-by-two error
    (bsc#980364).

  - CVE-2016-4804: The read_boot function in boot.c in
    dosfstools allowed attackers to cause a denial of
    service (crash) via a crafted filesystem, which triggers
    a heap-based buffer overflow in the (1) read_fat
    function or an out-of-bounds heap read in (2) get_fat
    function (bsc#980377).

This non-security issue was fixed :

  - bsc#912607: Attempt to rename root dir in fsck due to
    uninitialized fields. This update was imported from the
    SUSE:SLE-12:Update update project."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=912607"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=980364"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=980377"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected dosfstools packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dosfstools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dosfstools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dosfstools-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/09/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/09/06");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2020 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

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

  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/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE42\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.1", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE42.1", reference:"dosfstools-3.0.26-9.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"dosfstools-debuginfo-3.0.26-9.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"dosfstools-debugsource-3.0.26-9.1") ) 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, "dosfstools / dosfstools-debuginfo / dosfstools-debugsource");
}
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DLA-2224.NASL
    descriptionIt was discovered that there was both an invalid memory and heap overflow vulnerability in dosfstools, a collection of utilities for making and checking MS-DOS FAT filesystems. For Debian 8
    last seen2020-06-06
    modified2020-06-01
    plugin id136980
    published2020-06-01
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/136980
    titleDebian DLA-2224-1 : dosfstools security update
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2224-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(136980);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/05");

  script_cve_id("CVE-2015-8872", "CVE-2016-4804");

  script_name(english:"Debian DLA-2224-1 : dosfstools security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description",
    value:
"It was discovered that there was both an invalid memory and heap
overflow vulnerability in dosfstools, a collection of utilities for
making and checking MS-DOS FAT filesystems.

For Debian 8 'Jessie', these problems have been fixed in version
3.0.27-1+deb8u1.

We recommend that you upgrade your dosfstools packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2020/05/msg00028.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/dosfstools"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dosfstools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dosfstools-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dosfstools-udeb");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/06/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/05/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/06/01");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020 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:"8.0", prefix:"dosfstools", reference:"3.0.27-1+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"dosfstools-dbg", reference:"3.0.27-1+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"dosfstools-udeb", reference:"3.0.27-1+deb8u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:deb_report_get());
  else security_note(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2016-2146-1.NASL
    descriptiondosfstools was updated to fix two security issues. These security issues were fixed : - CVE-2015-8872: The set_fat function in fat.c in dosfstools might have allowed attackers to corrupt a FAT12 filesystem or cause a denial of service (invalid memory read and crash) by writing an odd number of clusters to the third to last entry on a FAT12 filesystem, which triggers an
    last seen2020-06-01
    modified2020-06-02
    plugin id93305
    published2016-09-02
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/93305
    titleSUSE SLES11 Security Update : dosfstools (SUSE-SU-2016:2146-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2016:2146-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(93305);
  script_version("2.8");
  script_cvs_date("Date: 2019/09/11 11:22:13");

  script_cve_id("CVE-2015-8872", "CVE-2016-4804");

  script_name(english:"SUSE SLES11 Security Update : dosfstools (SUSE-SU-2016:2146-1)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"dosfstools was updated to fix two security issues. These security
issues were fixed :

  - CVE-2015-8872: The set_fat function in fat.c in
    dosfstools might have allowed attackers to corrupt a
    FAT12 filesystem or cause a denial of service (invalid
    memory read and crash) by writing an odd number of
    clusters to the third to last entry on a FAT12
    filesystem, which triggers an 'off-by-two error
    (bsc#980364).

  - CVE-2016-4804: The read_boot function in boot.c in
    dosfstools allowed attackers to cause a denial of
    service (crash) via a crafted filesystem, which triggers
    a heap-based buffer overflow in the (1) read_fat
    function or an out-of-bounds heap read in (2) get_fat
    function (bsc#980377).

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=980364"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=980377"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-8872/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-4804/"
  );
  # https://www.suse.com/support/update/announcement/2016/suse-su-20162146-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?1a07e4da"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 11-SP4:zypper in -t patch
slessp4-dosfstools-12706=1

SUSE Linux Enterprise Debuginfo 11-SP4:zypper in -t patch
dbgsp4-dosfstools-12706=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:novell:suse_linux:dosfstools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/06/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/08/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/09/02");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/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/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES11)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES11", "SUSE " + os_ver);

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

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES11" && (! preg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP4", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES11", sp:"4", reference:"dosfstools-3.0.26-3.1")) 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, "dosfstools");
}
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2019-1961.NASL
    descriptionAccording to the versions of the dosfstools package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The set_fat function in fat.c in dosfstools before 4.0 might allow attackers to corrupt a FAT12 filesystem or cause a denial of service (invalid memory read and crash) by writing an odd number of clusters to the third to last entry on a FAT12 filesystem, which triggers an
    last seen2020-05-08
    modified2019-09-23
    plugin id129118
    published2019-09-23
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/129118
    titleEulerOS 2.0 SP5 : dosfstools (EulerOS-SA-2019-1961)
    code
    #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(129118);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/07");

  script_cve_id(
    "CVE-2015-8872",
    "CVE-2016-4804"
  );

  script_name(english:"EulerOS 2.0 SP5 : dosfstools (EulerOS-SA-2019-1961)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the dosfstools package installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :

  - The set_fat function in fat.c in dosfstools before 4.0
    might allow attackers to corrupt a FAT12 filesystem or
    cause a denial of service (invalid memory read and
    crash) by writing an odd number of clusters to the
    third to last entry on a FAT12 filesystem, which
    triggers an 'off-by-two error.'(CVE-2015-8872)

  - The read_boot function in boot.c in dosfstools before
    4.0 allows attackers to cause a denial of service
    (crash) via a crafted filesystem, which triggers a
    heap-based buffer overflow in the (1) read_fat function
    or an out-of-bounds heap read in (2) get_fat
    function.(CVE-2016-4804)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-1961
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c01a5d9f");
  script_set_attribute(attribute:"solution", value:
"Update the affected dosfstools packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"patch_publication_date", value:"2019/09/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/09/23");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:dosfstools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(5)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5", "EulerOS UVP " + uvp);

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

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["dosfstools-3.0.20-9.h3.eulerosv2r7"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"5", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_NOTE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "dosfstools");
}
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2016-F3262ABDA6.NASL
    descriptionThis is an update fixing off-by-2 error leading to corruption in FAT12 ( CVE-2015-8872) and heap-buffer-overflows in read_fat() and get_fat() functions (CVE-2016-4804). Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2016-07-14
    plugin id92203
    published2016-07-14
    reporterThis script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/92203
    titleFedora 22 : dosfstools (2016-f3262abda6)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory FEDORA-2016-f3262abda6.
#

include("compat.inc");

if (description)
{
  script_id(92203);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2015-8872", "CVE-2016-4804");
  script_xref(name:"FEDORA", value:"2016-f3262abda6");

  script_name(english:"Fedora 22 : dosfstools (2016-f3262abda6)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This is an update fixing off-by-2 error leading to corruption in FAT12
( CVE-2015-8872) and heap-buffer-overflows in read_fat() and get_fat()
functions (CVE-2016-4804).

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as
possible without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bodhi.fedoraproject.org/updates/FEDORA-2016-f3262abda6"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected dosfstools package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:dosfstools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:22");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/06/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/06/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/07/14");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "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) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^22([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 22", "Fedora " + 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 && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);


flag = 0;
if (rpm_check(release:"FC22", reference:"dosfstools-3.0.27-2.fc22")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_NOTE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "dosfstools");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2016-2145-1.NASL
    descriptiondosfstools was updated to fix two security issues. These security issues were fixed : - CVE-2015-8872: The set_fat function in fat.c in dosfstools might have allowed attackers to corrupt a FAT12 filesystem or cause a denial of service (invalid memory read and crash) by writing an odd number of clusters to the third to last entry on a FAT12 filesystem, which triggers an
    last seen2020-06-01
    modified2020-06-02
    plugin id93304
    published2016-09-02
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/93304
    titleSUSE SLED12 / SLES12 Security Update : dosfstools (SUSE-SU-2016:2145-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2016:2145-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(93304);
  script_version("2.9");
  script_cvs_date("Date: 2019/09/11 11:22:13");

  script_cve_id("CVE-2015-8872", "CVE-2016-4804");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : dosfstools (SUSE-SU-2016:2145-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"dosfstools was updated to fix two security issues. These security
issues were fixed :

  - CVE-2015-8872: The set_fat function in fat.c in
    dosfstools might have allowed attackers to corrupt a
    FAT12 filesystem or cause a denial of service (invalid
    memory read and crash) by writing an odd number of
    clusters to the third to last entry on a FAT12
    filesystem, which triggers an 'off-by-two error
    (bsc#980364).

  - CVE-2016-4804: The read_boot function in boot.c in
    dosfstools allowed attackers to cause a denial of
    service (crash) via a crafted filesystem, which triggers
    a heap-based buffer overflow in the (1) read_fat
    function or an out-of-bounds heap read in (2) get_fat
    function (bsc#980377).

The update package also includes non-security fixes. See advisory for
details.

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=912607"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=980364"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=980377"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-8872/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-4804/"
  );
  # https://www.suse.com/support/update/announcement/2016/suse-su-20162145-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?8801e48d"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 12-SP1:zypper in -t patch
SUSE-SLE-SERVER-12-SP1-2016-1263=1

SUSE Linux Enterprise Desktop 12-SP1:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP1-2016-1263=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:novell:suse_linux:dosfstools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:dosfstools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:dosfstools-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/06/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/08/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/09/02");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/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/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver);

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

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP1", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP1", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"1", reference:"dosfstools-3.0.26-6.5")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"dosfstools-debuginfo-3.0.26-6.5")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"dosfstools-debugsource-3.0.26-6.5")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"dosfstools-3.0.26-6.5")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"dosfstools-debuginfo-3.0.26-6.5")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"dosfstools-debugsource-3.0.26-6.5")) 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, "dosfstools");
}
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-2986-1.NASL
    descriptionHanno Bock discovered that dosfstools incorrectly handled certain malformed filesystems. A local attacker could use this issue to cause dosfstools to crash, resulting in a denial of service, or possibly execute arbitrary code. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id91422
    published2016-06-01
    reporterUbuntu Security Notice (C) 2016-2019 Canonical, Inc. / NASL script (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/91422
    titleUbuntu 12.04 LTS / 14.04 LTS / 15.10 / 16.04 LTS : dosfstools vulnerabilities (USN-2986-1)
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2019-2570.NASL
    descriptionAccording to the versions of the dosfstools package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The read_boot function in boot.c in dosfstools before 4.0 allows attackers to cause a denial of service (crash) via a crafted filesystem, which triggers a heap-based buffer overflow in the (1) read_fat function or an out-of-bounds heap read in (2) get_fat function.(CVE-2016-4804) - The set_fat function in fat.c in dosfstools before 4.0 might allow attackers to corrupt a FAT12 filesystem or cause a denial of service (invalid memory read and crash) by writing an odd number of clusters to the third to last entry on a FAT12 filesystem, which triggers an
    last seen2020-05-08
    modified2019-12-19
    plugin id132287
    published2019-12-19
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/132287
    titleEulerOS 2.0 SP3 : dosfstools (EulerOS-SA-2019-2570)
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2016-671.NASL
    descriptionThis update for dosfstools fixes the following issues : - fixed buffer overflows based on insufficient size of variable for storing FAT size (CVE-2016-4804, boo#980377) - dosfstools-3.0.26-read-fat-overflow.patch - fixed memory corruption when setting FAT12 entries (CVE-2015-8872, boo#980364) - dosfstools-3.0.26-off-by-2.patch - Fix attempt to rename root dir in fsck due to uninitialized fields [boo#912607] - Drop gpg-offline build-time requirement; this is now handled by the local source validator
    last seen2020-06-05
    modified2016-06-02
    plugin id91439
    published2016-06-02
    reporterThis script is Copyright (C) 2016-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/91439
    titleopenSUSE Security Update : dosfstools (openSUSE-2016-671)
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2020-1230.NASL
    descriptionAccording to the versions of the dosfstools package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - The read_boot function in boot.c in dosfstools before 4.0 allows attackers to cause a denial of service (crash) via a crafted filesystem, which triggers a heap-based buffer overflow in the (1) read_fat function or an out-of-bounds heap read in (2) get_fat function.(CVE-2016-4804) - The set_fat function in fat.c in dosfstools before 4.0 might allow attackers to corrupt a FAT12 filesystem or cause a denial of service (invalid memory read and crash) by writing an odd number of clusters to the third to last entry on a FAT12 filesystem, which triggers an
    last seen2020-03-19
    modified2020-03-13
    plugin id134519
    published2020-03-13
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/134519
    titleEulerOS Virtualization for ARM 64 3.0.2.0 : dosfstools (EulerOS-SA-2020-1230)
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2020-1458.NASL
    descriptionAccording to the versions of the dosfstools package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - The read_boot function in boot.c in dosfstools before 4.0 allows attackers to cause a denial of service (crash) via a crafted filesystem, which triggers a heap-based buffer overflow in the (1) read_fat function or an out-of-bounds heap read in (2) get_fat function.(CVE-2016-4804) - The set_fat function in fat.c in dosfstools before 4.0 might allow attackers to corrupt a FAT12 filesystem or cause a denial of service (invalid memory read and crash) by writing an odd number of clusters to the third to last entry on a FAT12 filesystem, which triggers an
    last seen2020-04-30
    modified2020-04-16
    plugin id135620
    published2020-04-16
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135620
    titleEulerOS Virtualization 3.0.2.2 : dosfstools (EulerOS-SA-2020-1458)
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2019-2356.NASL
    descriptionAccording to the versions of the dosfstools package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The read_boot function in boot.c in dosfstools before 4.0 allows attackers to cause a denial of service (crash) via a crafted filesystem, which triggers a heap-based buffer overflow in the (1) read_fat function or an out-of-bounds heap read in (2) get_fat function.(CVE-2016-4804) - The set_fat function in fat.c in dosfstools before 4.0 might allow attackers to corrupt a FAT12 filesystem or cause a denial of service (invalid memory read and crash) by writing an odd number of clusters to the third to last entry on a FAT12 filesystem, which triggers an
    last seen2020-05-08
    modified2019-12-10
    plugin id131848
    published2019-12-10
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/131848
    titleEulerOS 2.0 SP2 : dosfstools (EulerOS-SA-2019-2356)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2016-E2D635CBF8.NASL
    descriptionThis is an update fixing off-by-2 error leading to corruption in FAT12 ( CVE-2015-8872) and heap-buffer-overflows in read_fat() and get_fat() functions (CVE-2016-4804). Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2016-07-14
    plugin id92188
    published2016-07-14
    reporterThis script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/92188
    titleFedora 23 : dosfstools (2016-e2d635cbf8)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2016-F695B1A747.NASL
    descriptionThis is an update fixing off-by-2 error leading to corruption in FAT12 ( CVE-2015-8872) and heap-buffer-overflows in read_fat() and get_fat() functions (CVE-2016-4804). Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2016-07-14
    plugin id92209
    published2016-07-14
    reporterThis script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/92209
    titleFedora 24 : dosfstools (2016-f695b1a747)

References