Vulnerabilities > CVE-2017-13723 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products

047910
CVSS 7.8 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
local
low complexity
x-org
debian
CWE-119
nessus
NVD
Published: 2017-10-10
Updated: 2024-11-21

Summary

In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overflow a global buffer, causing crashes of the X server or potentially other problems by injecting large or malformed XKB related atoms and accessing them via xkbcomp.

Vulnerable Configurations

Part Description Count
Application
X.Org
160
OS
Debian
2

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 familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3453-1.NASL
    descriptionMichal Srb discovered that the X.Org X server incorrectly handled shared memory segments. An attacker able to connect to an X server, either locally or remotely, could use this issue to crash the server, or possibly replace shared memory segments of other X clients in the same session. (CVE-2017-13721) Michal Srb discovered that the X.Org X server incorrectly handled XKB buffers. An attacker able to connect to an X server, either locally or remotely, could use this issue to crash the server, or possibly execute arbitrary code. (CVE-2017-13723). 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 id103834
    published2017-10-13
    reporterUbuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/103834
    titleUbuntu 14.04 LTS / 16.04 LTS / 17.04 : xorg-server, xorg-server-hwe-16.04, xorg-server-lts-xenial vulnerabilities (USN-3453-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3453-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(103834);
  script_version("3.8");
  script_cvs_date("Date: 2019/09/18 12:31:47");

  script_cve_id("CVE-2017-13721", "CVE-2017-13723");
  script_xref(name:"USN", value:"3453-1");

  script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : xorg-server, xorg-server-hwe-16.04, xorg-server-lts-xenial vulnerabilities (USN-3453-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Michal Srb discovered that the X.Org X server incorrectly handled
shared memory segments. An attacker able to connect to an X server,
either locally or remotely, could use this issue to crash the server,
or possibly replace shared memory segments of other X clients in the
same session. (CVE-2017-13721)

Michal Srb discovered that the X.Org X server incorrectly handled XKB
buffers. An attacker able to connect to an X server, either locally or
remotely, could use this issue to crash the server, or possibly
execute arbitrary code. (CVE-2017-13723).

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."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://usn.ubuntu.com/3453-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Update the affected xserver-xorg-core, xserver-xorg-core-hwe-16.04 and
/ or xserver-xorg-core-lts-xenial packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/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:L/UI:N/S:U/C:H/I:H/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:canonical:ubuntu_linux:xserver-xorg-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:xserver-xorg-core-hwe-16.04");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:xserver-xorg-core-lts-xenial");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:17.04");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/10/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/10/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/13");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(14\.04|16\.04|17\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 14.04 / 16.04 / 17.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"14.04", pkgname:"xserver-xorg-core", pkgver:"2:1.15.1-0ubuntu2.10")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"xserver-xorg-core-lts-xenial", pkgver:"2:1.18.3-1ubuntu2.3~trusty3")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"xserver-xorg-core", pkgver:"2:1.18.4-0ubuntu0.6")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"xserver-xorg-core-hwe-16.04", pkgver:"2:1.19.3-1ubuntu1~16.04.3")) flag++;
if (ubuntu_check(osver:"17.04", pkgname:"xserver-xorg-core", pkgver:"2:1.19.3-1ubuntu1.2")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xserver-xorg-core / xserver-xorg-core-hwe-16.04 / etc");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2017-3047-1.NASL
    descriptionThis update for xorg-x11-server fixes several issues. These security issues were fixed : - CVE-2017-13721: Missing validation of shmseg resource id in Xext/XShm could lead to shared memory segments of other users beeing freed (bnc#1052984) - CVE-2017-13723: A local denial of service via unusual characters in XkbAtomText and XkbStringText was fixed (bnc#1051150) - CVE-2017-12184,CVE-2017-12185,CVE-2017-12186,CVE-2017-12 187: Fixed unvalidated lengths in multiple extensions (bsc#1063034) - CVE-2017-12183: Fixed some unvalidated lengths in the XFIXES extension. (bsc#1063035) - CVE-2017-12180,CVE-2017-12181,CVE-2017-12182: Fixed various unvalidated lengths in the XFree86-VidMode/XFree86-DGA/XFree86-DRI extensions (bsc#1063037) - CVE-2017-12179: Fixed an integer overflow and unvalidated length in (S)ProcXIBarrierReleasePointer in Xi (bsc#1063038) - CVE-2017-12178: Fixed a wrong extra length check in ProcXIChangeHierarchy in Xi (bsc#1063039) - CVE-2017-12177: Fixed an unvalidated variable-length request in ProcDbeGetVisualInfo (bsc#1063040) - CVE-2017-12176: Fixed an unvalidated extra length in ProcEstablishConnection (bsc#1063041) 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.
    last seen2020-06-01
    modified2020-06-02
    plugin id104776
    published2017-11-27
    reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/104776
    titleSUSE SLED12 / SLES12 Security Update : xorg-x11-server (SUSE-SU-2017:3047-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2017:3047-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(104776);
  script_version("3.10");
  script_cvs_date("Date: 2019/09/11 11:22:16");

  script_cve_id("CVE-2017-12176", "CVE-2017-12177", "CVE-2017-12178", "CVE-2017-12179", "CVE-2017-12180", "CVE-2017-12181", "CVE-2017-12182", "CVE-2017-12183", "CVE-2017-12184", "CVE-2017-12185", "CVE-2017-12186", "CVE-2017-12187", "CVE-2017-13721", "CVE-2017-13723");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : xorg-x11-server (SUSE-SU-2017:3047-1)");
  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:
"This update for xorg-x11-server fixes several issues. These security
issues were fixed :

  - CVE-2017-13721: Missing validation of shmseg resource id
    in Xext/XShm could lead to shared memory segments of
    other users beeing freed (bnc#1052984)

  - CVE-2017-13723: A local denial of service via unusual
    characters in XkbAtomText and XkbStringText was fixed
    (bnc#1051150)

  -
    CVE-2017-12184,CVE-2017-12185,CVE-2017-12186,CVE-2017-12
    187: Fixed unvalidated lengths in multiple extensions
    (bsc#1063034)

  - CVE-2017-12183: Fixed some unvalidated lengths in the
    XFIXES extension. (bsc#1063035)

  - CVE-2017-12180,CVE-2017-12181,CVE-2017-12182: Fixed
    various unvalidated lengths in the
    XFree86-VidMode/XFree86-DGA/XFree86-DRI extensions
    (bsc#1063037)

  - CVE-2017-12179: Fixed an integer overflow and
    unvalidated length in (S)ProcXIBarrierReleasePointer in
    Xi (bsc#1063038)

  - CVE-2017-12178: Fixed a wrong extra length check in
    ProcXIChangeHierarchy in Xi (bsc#1063039)

  - CVE-2017-12177: Fixed an unvalidated variable-length
    request in ProcDbeGetVisualInfo (bsc#1063040)

  - CVE-2017-12176: Fixed an unvalidated extra length in
    ProcEstablishConnection (bsc#1063041)

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=1022727"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1051150"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1052984"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1061107"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1063034"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1063035"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1063037"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1063038"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1063039"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1063040"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1063041"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-12176/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-12177/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-12178/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-12179/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-12180/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-12181/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-12182/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-12183/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-12184/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-12185/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-12186/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-12187/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13721/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13723/"
  );
  # https://www.suse.com/support/update/announcement/2017/suse-su-20173047-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?0d59c93a"
  );
  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 Software Development Kit 12-SP3:zypper in -t
patch SUSE-SLE-SDK-12-SP3-2017-1884=1

SUSE Linux Enterprise Software Development Kit 12-SP2:zypper in -t
patch SUSE-SLE-SDK-12-SP2-2017-1884=1

SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t
patch SUSE-SLE-RPI-12-SP2-2017-1884=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-2017-1884=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2017-1884=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP3-2017-1884=1

SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP2-2017-1884=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:xorg-x11-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xorg-x11-server-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xorg-x11-server-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xorg-x11-server-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xorg-x11-server-extra-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/10/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/11/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/27");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2019 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:"^(2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2/3", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP2/3", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"3", reference:"xorg-x11-server-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"xorg-x11-server-debuginfo-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"xorg-x11-server-debugsource-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"xorg-x11-server-extra-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"xorg-x11-server-extra-debuginfo-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"xorg-x11-server-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"xorg-x11-server-debuginfo-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"xorg-x11-server-debugsource-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"xorg-x11-server-extra-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"xorg-x11-server-extra-debuginfo-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"xorg-x11-server-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"xorg-x11-server-debuginfo-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"xorg-x11-server-debugsource-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"xorg-x11-server-extra-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"xorg-x11-server-extra-debuginfo-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"xorg-x11-server-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"xorg-x11-server-debuginfo-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"xorg-x11-server-debugsource-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"xorg-x11-server-extra-7.6_1.18.3-76.15.2")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"xorg-x11-server-extra-debuginfo-7.6_1.18.3-76.15.2")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xorg-x11-server");
}
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_4F8FFB9CF3884FBDB90FB3131559D888.NASL
    descriptionAlan Coopersmith reports : X.Org thanks Michal Srb of SuSE for finding these issues and bringing them to our attention, Julien Cristau of Debian for getting the fixes integrated, and Adam Jackson of Red Hat for publishing the release.
    last seen2020-06-01
    modified2020-06-02
    plugin id103741
    published2017-10-10
    reporterThis script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/103741
    titleFreeBSD : xorg-server -- multiple vulnabilities (4f8ffb9c-f388-4fbd-b90f-b3131559d888)
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201710-30.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201710-30 (X.Org Server: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in X.Org Server. Please review the referenced CVE identifiers for details. Impact : A local attacker could cause a global buffer overflow or a Denial of Service condition. Workaround : There is no known workaround at this time
    last seen2020-06-01
    modified2020-06-02
    plugin id104231
    published2017-10-30
    reporterThis script is Copyright (C) 2017-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/104231
    titleGLSA-201710-30 : X.Org Server: Multiple vulnerabilities
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2017-3025-1.NASL
    descriptionThis update for xorg-x11-server provides several fixes. These security issues were fixed : - CVE-2017-13723: Prevent local DoS via unusual characters in XkbAtomText and XkbStringText (bsc#1051150). - Improve the entropy when generating random data used in X.org server authorization cookies generation by using getentropy() and getrandom() when available (bsc#1025084) - CVE-2017-12184,CVE-2017-12185,CVE-2017-12186,CVE-2017-12 187: Fixed unvalidated lengths in multiple extensions (bsc#1063034) - CVE-2017-12183: Fixed some unvalidated lengths in the XFIXES extension. (bsc#1063035) - CVE-2017-12180,CVE-2017-12181,CVE-2017-12182: Fixed various unvalidated lengths in the XFree86-VidMode/XFree86-DGA/XFree86-DRI extensions (bsc#1063037) - CVE-2017-12179: Fixed an integer overflow and unvalidated length in (S)ProcXIBarrierReleasePointer in Xi (bsc#1063038) - CVE-2017-12178: Fixed a wrong extra length check in ProcXIChangeHierarchy in Xi (bsc#1063039) - CVE-2017-12177: Fixed an unvalidated variable-length request in ProcDbeGetVisualInfo (bsc#1063040) - CVE-2017-12176: Fixed an unvalidated extra length in ProcEstablishConnection (bsc#1063041) 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.
    last seen2020-06-01
    modified2020-06-02
    plugin id104651
    published2017-11-17
    reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/104651
    titleSUSE SLES11 Security Update : xorg-x11-server (SUSE-SU-2017:3025-1)
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2017-1295.NASL
    descriptionAccording to the version of the xorg-x11-server packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overflow a global buffer, causing crashes of the X server or potentially other problems by injecting large or malformed XKB related atoms and accessing them via xkbcomp.(CVE-2017-13723) 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.
    last seen2020-05-06
    modified2017-12-01
    plugin id104913
    published2017-12-01
    reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/104913
    titleEulerOS 2.0 SP1 : xorg-x11-server (EulerOS-SA-2017-1295)
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2017-1296.NASL
    descriptionAccording to the version of the xorg-x11-server packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overflow a global buffer, causing crashes of the X server or potentially other problems by injecting large or malformed XKB related atoms and accessing them via xkbcomp.(CVE-2017-13723) 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.
    last seen2020-05-06
    modified2017-12-01
    plugin id104914
    published2017-12-01
    reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/104914
    titleEulerOS 2.0 SP2 : xorg-x11-server (EulerOS-SA-2017-1296)
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DLA-1186.NASL
    descriptionSeveral vulnerabilities have been discovered in the X.Org X server. An attacker who
    last seen2020-03-17
    modified2017-11-27
    plugin id104745
    published2017-11-27
    reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/104745
    titleDebian DLA-1186-1 : xorg-server security update
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-4000.NASL
    descriptionSeveral vulnerabilities have been discovered in the X.Org X server. An attacker who
    last seen2020-06-01
    modified2020-06-02
    plugin id103882
    published2017-10-18
    reporterThis script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/103882
    titleDebian DSA-4000-1 : xorg-server - security update
  • NASL familySlackware Local Security Checks
    NASL idSLACKWARE_SSA_2017-279-03.NASL
    descriptionNew xorg-server packages are available for Slackware 14.0, 14.1, 14.2, and -current to fix security issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id103705
    published2017-10-09
    reporterThis script is Copyright (C) 2017-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/103705
    titleSlackware 14.0 / 14.1 / 14.2 / current : xorg-server (SSA:2017-279-03)

References