Vulnerabilities > CVE-2017-12182 - Improper Input Validation vulnerability in multiple products

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
debian
x-org
CWE-20
nessus

Summary

xorg-x11-server before 1.19.5 was missing length validation in XFree86 DRI extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.

Vulnerable Configurations

Part Description Count
OS
Debian
2
Application
X.Org
160

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.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

Nessus

  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_7274E0CC575F41BC861914A41B3C2AD0.NASL
    descriptionAdam Jackson reports : One regression fix since 1.19.4 (mea culpa), and fixes for CVEs 2017-12176 through 2017-12187.
    last seen2020-06-01
    modified2020-06-02
    plugin id103842
    published2017-10-16
    reporterThis script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/103842
    titleFreeBSD : xorg-server -- multiple vulnabilities (7274e0cc-575f-41bc-8619-14a41b3c2ad0)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from the FreeBSD VuXML database :
    #
    # Copyright 2003-2018 Jacques Vidrine and contributors
    #
    # Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
    # HTML, PDF, PostScript, RTF and so forth) with or without modification,
    # are permitted provided that the following conditions are met:
    # 1. Redistributions of source code (VuXML) must retain the above
    #    copyright notice, this list of conditions and the following
    #    disclaimer as the first lines of this file unmodified.
    # 2. Redistributions in compiled form (transformed to other DTDs,
    #    published online in any format, converted to PDF, PostScript,
    #    RTF and other formats) must reproduce the above copyright
    #    notice, this list of conditions and the following disclaimer
    #    in the documentation and/or other materials provided with the
    #    distribution.
    # 
    # THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
    # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
    # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
    # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
    # OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
    # OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
    # BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
    # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
    # OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
    # EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(103842);
      script_version("3.4");
      script_cvs_date("Date: 2018/11/10 11:49:46");
    
      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");
    
      script_name(english:"FreeBSD : xorg-server -- multiple vulnabilities (7274e0cc-575f-41bc-8619-14a41b3c2ad0)");
      script_summary(english:"Checks for updated packages in pkg_info output");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:
    "The remote FreeBSD host is missing one or more security-related
    updates."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "Adam Jackson reports :
    
    One regression fix since 1.19.4 (mea culpa), and fixes for CVEs
    2017-12176 through 2017-12187."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://lists.x.org/archives/xorg-announce/2017-October/002814.html"
      );
      # https://vuxml.freebsd.org/freebsd/7274e0cc-575f-41bc-8619-14a41b3c2ad0.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?d3adb3aa"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected packages.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
      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_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:xephyr");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:xorg-dmx");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:xorg-nestserver");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:xorg-server");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:xorg-vfbserver");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:xwayland");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2017/10/12");
      script_set_attribute(attribute:"patch_publication_date", value:"2017/10/13");
      script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/16");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"FreeBSD Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("freebsd_package.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
    if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    
    if (pkg_test(save_report:TRUE, pkg:"xephyr<1.18.4_5,1")) flag++;
    if (pkg_test(save_report:TRUE, pkg:"xorg-dmx<1.18.4_5,1")) flag++;
    if (pkg_test(save_report:TRUE, pkg:"xorg-nestserver<1.19.1_2,2")) flag++;
    if (pkg_test(save_report:TRUE, pkg:"xorg-server<1.18.4_5,1")) flag++;
    if (pkg_test(save_report:TRUE, pkg:"xorg-vfbserver<1.19.1_2,1")) flag++;
    if (pkg_test(save_report:TRUE, pkg:"xwayland<1.19.1_2")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
      else security_hole(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");
    
  • 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 familyHuawei Local Security Checks
    NASL idEULEROS_SA-2019-2683.NASL
    descriptionAccording to the versions of the xorg-x11-server packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and -logfile options when starting Xorg. X server allows unprivileged users with the ability to log in to the system via physical console to escalate their privileges and run arbitrary code under root privileges.(CVE-2018-14665) - In the X.Org X server before 2017-06-19, a user authenticated to an X Session could crash or execute code in the context of the X Server by exploiting a stack overflow in the endianness conversion of X Events.(CVE-2017-10971) - In X.Org Server (aka xserver and xorg-server) before 1.19.4, an attacker authenticated to an X server with the X shared memory extension enabled can cause aborts of the X server or replace shared memory segments of other X clients in the same session.(CVE-2017-13721) - It was found that xorg-x11-server before 1.19.0 including uses memcmp() to check the received MIT cookie against a series of valid cookies. If the cookie is correct, it is allowed to attach to the Xorg session. Since most memcmp() implementations return after an invalid byte is seen, this causes a time difference between a valid and invalid byte, which could allow an efficient brute force attack.(CVE-2017-2624) - Uninitialized data in endianness conversion in the XEvent handling of the X.Org X Server before 2017-06-19 allowed authenticated malicious users to access potentially privileged data from the X server.(CVE-2017-10972) - xorg-x11-server before 1.19.5 had wrong extra length check in ProcXIChangeHierarchy function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12178) - xorg-x11-server before 1.19.5 was missing extra length validation in ProcEstablishConnection function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12176) - xorg-x11-server before 1.19.5 was missing length validation in MIT-SCREEN-SAVER extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12185) - xorg-x11-server before 1.19.5 was missing length validation in RENDER extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12187) - xorg-x11-server before 1.19.5 was missing length validation in XFIXES extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12183) - xorg-x11-server before 1.19.5 was missing length validation in XFree86 DGA extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12181) - xorg-x11-server before 1.19.5 was missing length validation in XFree86 DRI extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12182) - xorg-x11-server before 1.19.5 was missing length validation in XFree86 VidModeExtension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12180) - xorg-x11-server before 1.19.5 was missing length validation in XINERAMA extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12184) - xorg-x11-server before 1.19.5 was missing length validation in X-Resource extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12186) - xorg-x11-server before 1.19.5 was vulnerable to integer overflow in (S)ProcXIBarrierReleasePointer functions allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12179) - xorg-x11-server before 1.19.5 was vulnerable to integer overflow in ProcDbeGetVisualInfo function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12177) 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 seen2020-05-08
    modified2019-12-18
    plugin id132218
    published2019-12-18
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/132218
    titleEulerOS 2.0 SP3 : xorg-x11-server (EulerOS-SA-2019-2683)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(132218);
      script_version("1.3");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/07");
    
      script_cve_id(
        "CVE-2017-10971",
        "CVE-2017-10972",
        "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-2017-2624",
        "CVE-2018-14665"
      );
    
      script_name(english:"EulerOS 2.0 SP3 : xorg-x11-server (EulerOS-SA-2019-2683)");
      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 xorg-x11-server packages installed,
    the EulerOS installation on the remote host is affected by the
    following vulnerabilities :
    
      - A flaw was found in xorg-x11-server before 1.20.3. An
        incorrect permission check for -modulepath and -logfile
        options when starting Xorg. X server allows
        unprivileged users with the ability to log in to the
        system via physical console to escalate their
        privileges and run arbitrary code under root
        privileges.(CVE-2018-14665)
    
      - In the X.Org X server before 2017-06-19, a user
        authenticated to an X Session could crash or execute
        code in the context of the X Server by exploiting a
        stack overflow in the endianness conversion of X
        Events.(CVE-2017-10971)
    
      - In X.Org Server (aka xserver and xorg-server) before
        1.19.4, an attacker authenticated to an X server with
        the X shared memory extension enabled can cause aborts
        of the X server or replace shared memory segments of
        other X clients in the same session.(CVE-2017-13721)
    
      - It was found that xorg-x11-server before 1.19.0
        including uses memcmp() to check the received MIT
        cookie against a series of valid cookies. If the cookie
        is correct, it is allowed to attach to the Xorg
        session. Since most memcmp() implementations return
        after an invalid byte is seen, this causes a time
        difference between a valid and invalid byte, which
        could allow an efficient brute force
        attack.(CVE-2017-2624)
    
      - Uninitialized data in endianness conversion in the
        XEvent handling of the X.Org X Server before 2017-06-19
        allowed authenticated malicious users to access
        potentially privileged data from the X
        server.(CVE-2017-10972)
    
      - xorg-x11-server before 1.19.5 had wrong extra length
        check in ProcXIChangeHierarchy function allowing
        malicious X client to cause X server to crash or
        possibly execute arbitrary code.(CVE-2017-12178)
    
      - xorg-x11-server before 1.19.5 was missing extra length
        validation in ProcEstablishConnection function allowing
        malicious X client to cause X server to crash or
        possibly execute arbitrary code.(CVE-2017-12176)
    
      - xorg-x11-server before 1.19.5 was missing length
        validation in MIT-SCREEN-SAVER extension allowing
        malicious X client to cause X server to crash or
        possibly execute arbitrary code.(CVE-2017-12185)
    
      - xorg-x11-server before 1.19.5 was missing length
        validation in RENDER extension allowing malicious X
        client to cause X server to crash or possibly execute
        arbitrary code.(CVE-2017-12187)
    
      - xorg-x11-server before 1.19.5 was missing length
        validation in XFIXES extension allowing malicious X
        client to cause X server to crash or possibly execute
        arbitrary code.(CVE-2017-12183)
    
      - xorg-x11-server before 1.19.5 was missing length
        validation in XFree86 DGA extension allowing malicious
        X client to cause X server to crash or possibly execute
        arbitrary code.(CVE-2017-12181)
    
      - xorg-x11-server before 1.19.5 was missing length
        validation in XFree86 DRI extension allowing malicious
        X client to cause X server to crash or possibly execute
        arbitrary code.(CVE-2017-12182)
    
      - xorg-x11-server before 1.19.5 was missing length
        validation in XFree86 VidModeExtension allowing
        malicious X client to cause X server to crash or
        possibly execute arbitrary code.(CVE-2017-12180)
    
      - xorg-x11-server before 1.19.5 was missing length
        validation in XINERAMA extension allowing malicious X
        client to cause X server to crash or possibly execute
        arbitrary code.(CVE-2017-12184)
    
      - xorg-x11-server before 1.19.5 was missing length
        validation in X-Resource extension allowing malicious X
        client to cause X server to crash or possibly execute
        arbitrary code.(CVE-2017-12186)
    
      - xorg-x11-server before 1.19.5 was vulnerable to integer
        overflow in (S)ProcXIBarrierReleasePointer functions
        allowing malicious X client to cause X server to crash
        or possibly execute arbitrary code.(CVE-2017-12179)
    
      - xorg-x11-server before 1.19.5 was vulnerable to integer
        overflow in ProcDbeGetVisualInfo function allowing
        malicious X client to cause X server to crash or
        possibly execute arbitrary code.(CVE-2017-12177)
    
    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-2019-2683
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?46718661");
      script_set_attribute(attribute:"solution", value:
    "Update the affected xorg-x11-server packages.");
      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:F/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:F/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
      script_set_attribute(attribute:"metasploit_name", value:'Xorg X11 Server SUID modulepath Privilege Escalation');
      script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2019/12/18");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/18");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:xorg-x11-server-Xephyr");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:xorg-x11-server-Xorg");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:xorg-x11-server-common");
      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 !~ "^(3)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3");
    
    uvp = get_kb_item("Host/EulerOS/uvp_version");
    if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3", "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 = ["xorg-x11-server-Xephyr-1.17.2-10.h6",
            "xorg-x11-server-Xorg-1.17.2-10.h6",
            "xorg-x11-server-common-1.17.2-10.h6"];
    
    foreach (pkg in pkgs)
      if (rpm_check(release:"EulerOS-2.0", sp:"3", reference:pkg)) flag++;
    
    if (flag)
    {
      security_report_v4(
        port       : 0,
        severity   : SECURITY_HOLE,
        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, "xorg-x11-server");
    }
    
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201711-05.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201711-05 (X.Org Server: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in X.Org Server. Please review the referenced CVE identifiers for details. Impact : Attackers could execute arbitrary code or cause a Denial of Service condition. Workaround : There is now know workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id104513
    published2017-11-13
    reporterThis script is Copyright (C) 2017-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/104513
    titleGLSA-201711-05 : X.Org Server: Multiple vulnerabilities
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2017-1177.NASL
    descriptionThis update for xorg-x11-server fixes the following vulnerabilities : - CVE-2017-12176: Unvalidated extra length in ProcEstablishConnection (bsc#1063041) - CVE-2017-12177: dbe: Unvalidated variable-length request in ProcDbeGetVisualInfo (bsc#1063040) - CVE-2017-12178: Xi: fix wrong extra length check in ProcXIChangeHierarchy (bsc#1063039) - CVE-2017-12179: Xi: integer overflow and unvalidated length in (S)ProcXIBarrierReleasePointer (bsc#1063038) - CVE-2017-12180,CVE-2017-12181,CVE-2017-12182: Unvalidated lengths in XFree86-VidMode/XFree86-DGA/XFree86-DRI extension (bsc#1063037) - CVE-2017-12183: Unvalidated lengths in XFIXES extension (bsc#1063035) - CVE-2017-12184,CVE-2017-12185,CVE-2017-12186,CVE-2017-12 187: Unvalidated lengths in multiple extensions (bsc#1063034)
    last seen2020-06-05
    modified2017-10-23
    plugin id104081
    published2017-10-23
    reporterThis script is Copyright (C) 2017-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/104081
    titleopenSUSE Security Update : xorg-x11-server (openSUSE-2017-1177)
  • NASL familySlackware Local Security Checks
    NASL idSLACKWARE_SSA_2017-291-03.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 id103945
    published2017-10-19
    reporterThis script is Copyright (C) 2017-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/103945
    titleSlackware 14.0 / 14.1 / 14.2 / current : xorg-server (SSA:2017-291-03)
  • 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 familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3456-1.NASL
    descriptionIt was discovered that the X.Org X server incorrectly handled certain lengths. An attacker able to connect to an X server, either locally or remotely, could use these issues to crash the server, 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 id103921
    published2017-10-18
    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/103921
    titleUbuntu 14.04 LTS / 16.04 LTS / 17.04 : xorg-server, xorg-server-hwe-16.04, xorg-server-lts-xenial vulnerabilities (USN-3456-1)
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2019-2421.NASL
    descriptionAccording to the versions of the xorg-x11-server packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - xorg-x11-server before 1.19.5 was vulnerable to integer overflow in ProcDbeGetVisualInfo function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12177) - xorg-x11-server before 1.19.5 had wrong extra length check in ProcXIChangeHierarchy function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12178) - xorg-x11-server before 1.19.5 was vulnerable to integer overflow in (S)ProcXIBarrierReleasePointer functions allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12179) - xorg-x11-server before 1.19.5 was missing length validation in XFree86 VidModeExtension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12180) - xorg-x11-server before 1.19.5 was missing length validation in XFree86 DGA extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12181) - xorg-x11-server before 1.19.5 was missing length validation in XFree86 DRI extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12182) - xorg-x11-server before 1.19.5 was missing length validation in XFIXES extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12183) - xorg-x11-server before 1.19.5 was missing length validation in XINERAMA extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12184) - xorg-x11-server before 1.19.5 was missing length validation in MIT-SCREEN-SAVER extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12185) - xorg-x11-server before 1.19.5 was missing length validation in X-Resource extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12186) - xorg-x11-server before 1.19.5 was missing length validation in RENDER extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12187) - In X.Org Server (aka xserver and xorg-server) before 1.19.4, an attacker authenticated to an X server with the X shared memory extension enabled can cause aborts of the X server or replace shared memory segments of other X clients in the same session.(CVE-2017-13721) - It was found that xorg-x11-server before 1.19.0 including uses memcmp() to check the received MIT cookie against a series of valid cookies. If the cookie is correct, it is allowed to attach to the Xorg session. Since most memcmp() implementations return after an invalid byte is seen, this causes a time difference between a valid and invalid byte, which could allow an efficient brute force attack.(CVE-2017-2624) - A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and -logfile options when starting Xorg. X server allows unprivileged users with the ability to log in to the system via physical console to escalate their privileges and run arbitrary code under root privileges.(CVE-2018-14665) - In the X.Org X server before 2017-06-19, a user authenticated to an X Session could crash or execute code in the context of the X Server by exploiting a stack overflow in the endianness conversion of X Events.(CVE-2017-10971) - Uninitialized data in endianness conversion in the XEvent handling of the X.Org X Server before 2017-06-19 allowed authenticated malicious users to access potentially privileged data from the X server.(CVE-2017-10972) - xorg-x11-server before 1.19.5 was missing extra length validation in ProcEstablishConnection function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.(CVE-2017-12176) 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 seen2020-05-08
    modified2019-12-10
    plugin id131913
    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/131913
    titleEulerOS 2.0 SP2 : xorg-x11-server (EulerOS-SA-2019-2421)
  • 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