Vulnerabilities > CVE-2017-6209 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Virglrenderer Project Virglrenderer 0.2.0/0.4.0/0.5.0

047910
CVSS 6.5 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
HIGH
local
low complexity
virglrenderer-project
CWE-119
nessus
NVD
Published: 2017-03-15
Updated: 2017-07-11

Summary

Stack-based buffer overflow in the parse_identifier function in tgsi_text.c in the TGSI auxiliary module in the Gallium driver in virglrenderer before 0.6.0 allows local guest OS users to cause a denial of service (out-of-bounds array access and QEMU process crash) via vectors related to parsing properties.

Vulnerable Configurations

Part Description Count
Application
Virglrenderer_Project
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-2017-415.NASL
    descriptionThis update for virglrenderer fixes the following issues : Security issues fixed : - CVE-2017-6386: memory leakage while in vrend_create_vertex_elements_state (bsc#1027376) - CVE-2017-6355: integer overflow while creating shader object (bsc#1027108) - CVE-2017-6317: fix memory leak in add shader program (bsc#1026922) - CVE-2017-6210: NULL pointer dereference in vrend_decode_reset (bsc#1026725) - CVE-2017-6209: stack buffer oveflow in parse_identifier (bsc#1026723) - CVE-2017-5994: out-of-bounds access in vrend_create_vertex_elements_state (bsc#1025507) - CVE-2017-5993: host memory leakage when initialising blitter context (bsc#1025505) - CVE-2017-5957: stack overflow in vrend_decode_set_framebuffer_state (bsc#1024993) - CVE-2017-5956: OOB access while in vrend_draw_vbo (bsc#1024992) - CVE-2017-5937: NULL pointer dereference in vrend_clear (bsc#1024232) - CVE-2017-5580: OOB access while parsing texture instruction (bsc#1021627) - CVE-2016-10214: host memory leak issue in virgl_resource_attach_backing (bsc#1024244) - CVE-2016-10163: host memory leakage when creating decode context (bsc#1021616) This update was imported from the SUSE:SLE-12-SP2:Update update project.
    last seen2020-06-05
    modified2017-04-03
    plugin id99153
    published2017-04-03
    reporterThis script is Copyright (C) 2017-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/99153
    titleopenSUSE Security Update : virglrenderer (openSUSE-2017-415)
    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-2017-415.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(99153);
  script_version("3.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2016-10163", "CVE-2016-10214", "CVE-2017-5580", "CVE-2017-5937", "CVE-2017-5956", "CVE-2017-5957", "CVE-2017-5993", "CVE-2017-5994", "CVE-2017-6209", "CVE-2017-6210", "CVE-2017-6317", "CVE-2017-6355", "CVE-2017-6386");

  script_name(english:"openSUSE Security Update : virglrenderer (openSUSE-2017-415)");
  script_summary(english:"Check for the openSUSE-2017-415 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for virglrenderer fixes the following issues :

Security issues fixed :

  - CVE-2017-6386: memory leakage while in
    vrend_create_vertex_elements_state (bsc#1027376)

  - CVE-2017-6355: integer overflow while creating shader
    object (bsc#1027108)

  - CVE-2017-6317: fix memory leak in add shader program
    (bsc#1026922)

  - CVE-2017-6210: NULL pointer dereference in
    vrend_decode_reset (bsc#1026725)

  - CVE-2017-6209: stack buffer oveflow in parse_identifier
    (bsc#1026723)

  - CVE-2017-5994: out-of-bounds access in
    vrend_create_vertex_elements_state (bsc#1025507)

  - CVE-2017-5993: host memory leakage when initialising
    blitter context (bsc#1025505)

  - CVE-2017-5957: stack overflow in
    vrend_decode_set_framebuffer_state (bsc#1024993)

  - CVE-2017-5956: OOB access while in vrend_draw_vbo
    (bsc#1024992)

  - CVE-2017-5937: NULL pointer dereference in vrend_clear
    (bsc#1024232)

  - CVE-2017-5580: OOB access while parsing texture
    instruction (bsc#1021627)

  - CVE-2016-10214: host memory leak issue in
    virgl_resource_attach_backing (bsc#1024244)

  - CVE-2016-10163: host memory leakage when creating decode
    context (bsc#1021616)

This update was imported from the SUSE:SLE-12-SP2:Update update
project."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1021616"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1021627"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1024232"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1024244"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1024992"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1024993"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1025505"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1025507"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1026723"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1026725"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1026922"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1027108"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1027376"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected virglrenderer packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/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:libvirglrenderer0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirglrenderer0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:virglrenderer-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:virglrenderer-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:virglrenderer-test-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:virglrenderer-test-server-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/03/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/04/03");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 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\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.2", 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:"SUSE42.2", reference:"libvirglrenderer0-0.5.0-3.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libvirglrenderer0-debuginfo-0.5.0-3.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"virglrenderer-debugsource-0.5.0-3.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"virglrenderer-devel-0.5.0-3.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"virglrenderer-test-server-0.5.0-3.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"virglrenderer-test-server-debuginfo-0.5.0-3.3.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libvirglrenderer0 / libvirglrenderer0-debuginfo / etc");
}
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201707-06.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201707-06 (virglrenderer: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in virglrenderer. Please review the CVE identifiers referenced below for details. Impact : A local attacker could cause a Denial of Service condition. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id101337
    published2017-07-10
    reporterThis script is Copyright (C) 2017 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/101337
    titleGLSA-201707-06 : virglrenderer: Multiple vulnerabilities
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2017-0798-1.NASL
    descriptionThis update for virglrenderer fixes the following issues: Security issues fixed : - CVE-2017-6386: memory leakage while in vrend_create_vertex_elements_state (bsc#1027376) - CVE-2017-6355: integer overflow while creating shader object (bsc#1027108) - CVE-2017-6317: fix memory leak in add shader program (bsc#1026922) - CVE-2017-6210: NULL pointer dereference in vrend_decode_reset (bsc#1026725) - CVE-2017-6209: stack buffer oveflow in parse_identifier (bsc#1026723) - CVE-2017-5994: out-of-bounds access in vrend_create_vertex_elements_state (bsc#1025507) - CVE-2017-5993: host memory leakage when initialising blitter context (bsc#1025505) - CVE-2017-5957: stack overflow in vrend_decode_set_framebuffer_state (bsc#1024993) - CVE-2017-5956: OOB access while in vrend_draw_vbo (bsc#1024992) - CVE-2017-5937: NULL pointer dereference in vrend_clear (bsc#1024232) - CVE-2017-5580: OOB access while parsing texture instruction (bsc#1021627) - CVE-2016-10214: host memory leak issue in virgl_resource_attach_backing (bsc#1024244) - CVE-2016-10163: host memory leakage when creating decode context (bsc#1021616) 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 id97913
    published2017-03-23
    reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/97913
    titleSUSE SLED12 / SLES12 Security Update : virglrenderer (SUSE-SU-2017:0798-1)

References