Vulnerabilities > CVE-2020-6822 - Out-of-bounds Write vulnerability in Mozilla Firefox

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2020-520.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(135578);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/07");

  script_cve_id("CVE-2020-6819", "CVE-2020-6820", "CVE-2020-6821", "CVE-2020-6822", "CVE-2020-6825");

  script_name(english:"openSUSE Security Update : MozillaThunderbird (openSUSE-2020-520)");
  script_summary(english:"Check for the openSUSE-2020-520 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 MozillaThunderbird to version 68.7.0 fixes the
following issues :

  - CVE-2020-6819: Use-after-free while running the
    nsDocShell destructor (boo#1168630)

  - CVE-2020-6820: Use-after-free when handling a
    ReadableStream (boo#1168630)

  - CVE-2020-6821: Uninitialized memory could be read when
    using the WebGL copyTexSubImage() (boo#1168874)

  - CVE-2020-6822: Out of bounds write in GMPDecodeData when
    processing large images (boo#1168874)

  - CVE-2020-6825: Memory safety bugs fixed (boo#1168874)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1168630"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1168874"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected MozillaThunderbird 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: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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:MozillaThunderbird");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:MozillaThunderbird-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:MozillaThunderbird-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:MozillaThunderbird-translations-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:MozillaThunderbird-translations-other");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"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 !~ "^(SUSE15\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "15.1", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

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

flag = 0;

if ( rpm_check(release:"SUSE15.1", reference:"MozillaThunderbird-68.7.0-lp151.2.31.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"MozillaThunderbird-debuginfo-68.7.0-lp151.2.31.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"MozillaThunderbird-debugsource-68.7.0-lp151.2.31.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"MozillaThunderbird-translations-common-68.7.0-lp151.2.31.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"MozillaThunderbird-translations-other-68.7.0-lp151.2.31.1") ) 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, "MozillaThunderbird / MozillaThunderbird-debuginfo / etc");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2020:1489 and 
# CentOS Errata and Security Advisory 2020:1489 respectively.
#

include("compat.inc");

if (description)
{
  script_id(136194);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/05");

  script_cve_id("CVE-2020-6819", "CVE-2020-6820", "CVE-2020-6821", "CVE-2020-6822", "CVE-2020-6825");
  script_xref(name:"RHSA", value:"2020:1489");

  script_name(english:"CentOS 7 : thunderbird (CESA-2020:1489)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote CentOS host is missing a security update."
  );
  script_set_attribute(
    attribute:"description",
    value:
"The remote Redhat Enterprise Linux 7 host has a package installed that is affected by multiple vulnerabilities as
referenced in the RHSA-2020:1489 advisory.

  - Mozilla: Use-after-free while running the nsDocShell
    destructor (CVE-2020-6819)

  - Mozilla: Use-after-free when handling a ReadableStream
    (CVE-2020-6820)

  - Mozilla: Uninitialized memory could be read when using
    the WebGL copyTexSubImage method (CVE-2020-6821)

  - Mozilla: Out of bounds write in GMPDecodeData when
    processing large images (CVE-2020-6822)

  - Mozilla: Memory safety bugs fixed in Firefox 75 and
    Firefox ESR 68.7 (CVE-2020-6825)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number."
  );
  # https://lists.centos.org/pipermail/centos-announce/2020-April/035710.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?390c6263"
  );
  script_set_attribute(
    attribute:"solution",
    value:"Update the affected thunderbird package."
  );
  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:"cvss_score_source", value:"CVE-2020-6825");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:thunderbird");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/01");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/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/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 7.x", "CentOS " + os_ver);

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


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


flag = 0;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"thunderbird-68.7.0-1.el7.centos", allowmaj:TRUE)) 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, "thunderbird");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2020:1488 and 
# CentOS Errata and Security Advisory 2020:1488 respectively.
#

include("compat.inc");

if (description)
{
  script_id(136017);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/05");

  script_cve_id("CVE-2020-6819", "CVE-2020-6820", "CVE-2020-6821", "CVE-2020-6822", "CVE-2020-6825");
  script_xref(name:"RHSA", value:"2020:1488");

  script_name(english:"CentOS 6 : thunderbird (CESA-2020:1488)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote CentOS host is missing a security update."
  );
  script_set_attribute(
    attribute:"description",
    value:
"The remote Redhat Enterprise Linux 6 host has a package installed that is affected by multiple vulnerabilities as
referenced in the RHSA-2020:1488 advisory.

  - Mozilla: Use-after-free while running the nsDocShell
    destructor (CVE-2020-6819)

  - Mozilla: Use-after-free when handling a ReadableStream
    (CVE-2020-6820)

  - Mozilla: Uninitialized memory could be read when using
    the WebGL copyTexSubImage method (CVE-2020-6821)

  - Mozilla: Out of bounds write in GMPDecodeData when
    processing large images (CVE-2020-6822)

  - Mozilla: Memory safety bugs fixed in Firefox 75 and
    Firefox ESR 68.7 (CVE-2020-6825)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number."
  );
  # https://lists.centos.org/pipermail/centos-announce/2020-April/035698.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?f9366714"
  );
  script_set_attribute(
    attribute:"solution",
    value:"Update the affected thunderbird package."
  );
  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:"cvss_score_source", value:"CVE-2020-6825");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:thunderbird");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:6");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/28");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/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/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 6.x", "CentOS " + os_ver);

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


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


flag = 0;
if (rpm_check(release:"CentOS-6", reference:"thunderbird-68.7.0-1.el6.centos", allowmaj:TRUE)) 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, "thunderbird");
}