Vulnerabilities > CVE-2020-11765 - Off-by-one Error vulnerability in multiple products

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2020-682.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(136880);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/28");

  script_cve_id("CVE-2020-11758", "CVE-2020-11760", "CVE-2020-11761", "CVE-2020-11762", "CVE-2020-11763", "CVE-2020-11764", "CVE-2020-11765");

  script_name(english:"openSUSE Security Update : openexr (openSUSE-2020-682)");
  script_summary(english:"Check for the openSUSE-2020-682 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 openexr provides the following fix :

Security issues fixed :

  - CVE-2020-11765: Fixed an off-by-one error in use of the
    ImfXdr.h read function by
    DwaCompressor:Classifier:Classifier (bsc#1169575).

  - CVE-2020-11764: Fixed an out-of-bounds write in
    copyIntoFrameBuffer in ImfMisc.cpp (bsc#1169574).

  - CVE-2020-11763: Fixed an out-of-bounds read and write,
    as demonstrated by ImfTileOffsets.cpp (bsc#1169576).

  - CVE-2020-11762: Fixed an out-of-bounds read and write in
    DwaCompressor:uncompress in ImfDwaCompressor.cpp when
    handling the UNKNOWN compression case (bsc#1169549).

  - CVE-2020-11761: Fixed an out-of-bounds read during
    Huffman uncompression, as demonstrated by
    FastHufDecoder:refill in ImfFastHuf.cpp (bsc#1169578).

  - CVE-2020-11760: Fixed an out-of-bounds read during RLE
    uncompression in rleUncompress in ImfRle.cpp
    (bsc#1169580).

  - CVE-2020-11758: Fixed an out-of-bounds read in
    ImfOptimizedPixelReading.h (bsc#1169573).

Non-security issue fixed :

  - Enable tests when building the package on x86_64.
    (bsc#1146648)

This update was imported from the SUSE:SLE-15:Update update project."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1146648"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1169549"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1169573"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1169574"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1169575"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1169576"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1169578"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1169580"
  );
  script_set_attribute(
    attribute:"solution",
    value:"Update the affected openexr packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libIlmImf-2_2-23");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libIlmImf-2_2-23-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libIlmImf-2_2-23-32bit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libIlmImf-2_2-23-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libIlmImfUtil-2_2-23");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libIlmImfUtil-2_2-23-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libIlmImfUtil-2_2-23-32bit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libIlmImfUtil-2_2-23-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:openexr");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:openexr-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:openexr-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:openexr-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/05/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/26");
  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 !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE15.1", reference:"libIlmImf-2_2-23-2.2.1-lp151.4.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"libIlmImf-2_2-23-debuginfo-2.2.1-lp151.4.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"libIlmImfUtil-2_2-23-2.2.1-lp151.4.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"libIlmImfUtil-2_2-23-debuginfo-2.2.1-lp151.4.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"openexr-2.2.1-lp151.4.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"openexr-debuginfo-2.2.1-lp151.4.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"openexr-debugsource-2.2.1-lp151.4.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"openexr-devel-2.2.1-lp151.4.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", cpu:"x86_64", reference:"libIlmImf-2_2-23-32bit-2.2.1-lp151.4.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", cpu:"x86_64", reference:"libIlmImf-2_2-23-32bit-debuginfo-2.2.1-lp151.4.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", cpu:"x86_64", reference:"libIlmImfUtil-2_2-23-32bit-2.2.1-lp151.4.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", cpu:"x86_64", reference:"libIlmImfUtil-2_2-23-32bit-debuginfo-2.2.1-lp151.4.9.1") ) 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, "libIlmImf-2_2-23 / libIlmImf-2_2-23-debuginfo / etc");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2020:1293-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(136787);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/26");

  script_cve_id("CVE-2020-11758", "CVE-2020-11760", "CVE-2020-11761", "CVE-2020-11762", "CVE-2020-11763", "CVE-2020-11764", "CVE-2020-11765");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : openexr (SUSE-SU-2020:1293-1)");
  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 openexr provides the following fix :

Security issues fixed :

CVE-2020-11765: Fixed an off-by-one error in use of the ImfXdr.h read
function by DwaCompressor:Classifier:Classifier (bsc#1169575).

CVE-2020-11764: Fixed an out-of-bounds write in copyIntoFrameBuffer in
ImfMisc.cpp (bsc#1169574).

CVE-2020-11763: Fixed an out-of-bounds read and write, as demonstrated
by ImfTileOffsets.cpp (bsc#1169576).

CVE-2020-11762: Fixed an out-of-bounds read and write in
DwaCompressor:uncompress in ImfDwaCompressor.cpp when handling the
UNKNOWN compression case (bsc#1169549).

CVE-2020-11761: Fixed an out-of-bounds read during Huffman
uncompression, as demonstrated by FastHufDecoder:refill in
ImfFastHuf.cpp (bsc#1169578).

CVE-2020-11760: Fixed an out-of-bounds read during RLE uncompression
in rleUncompress in ImfRle.cpp (bsc#1169580).

CVE-2020-11758: Fixed an out-of-bounds read in
ImfOptimizedPixelReading.h (bsc#1169573).

Non-security issue fixed :

Enable tests when building the package on x86_64. (bsc#1146648)

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=1146648"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1169549"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1169573"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1169574"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1169575"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1169576"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1169578"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1169580"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-11758/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-11760/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-11761/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-11762/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-11763/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-11764/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-11765/"
  );
  # https://www.suse.com/support/update/announcement/2020/suse-su-20201293-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?cee210de"
  );
  script_set_attribute(
    attribute:"solution",
    value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Module for Open Buildservice Development Tools
15-SP1 :

zypper in -t patch
SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2020-1293=1

SUSE Linux Enterprise Module for Desktop Applications 15-SP1 :

zypper in -t patch
SUSE-SLE-Module-Desktop-Applications-15-SP1-2020-1293=1"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libIlmImf-2_2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libIlmImf-2_2-23");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libIlmImf-2_2-23-32bit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libIlmImf-2_2-23-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libIlmImfUtil-2_2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libIlmImfUtil-2_2-23");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libIlmImfUtil-2_2-23-32bit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libIlmImfUtil-2_2-23-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openexr");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openexr-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openexr-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openexr-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openexr-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/05/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/22");
  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/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:"^(SLED15|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED15 / SLES15", "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 == "SLES15" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP1", os_ver + " SP" + sp);
if (os_ver == "SLED15" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLED15 SP1", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES15", sp:"1", cpu:"x86_64", reference:"libIlmImf-2_2-23-32bit-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", cpu:"x86_64", reference:"libIlmImf-2_2-23-32bit-debuginfo-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", cpu:"x86_64", reference:"libIlmImfUtil-2_2-23-32bit-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", cpu:"x86_64", reference:"libIlmImfUtil-2_2-23-32bit-debuginfo-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"openexr-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"openexr-debuginfo-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"openexr-debugsource-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"openexr-doc-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libIlmImf-2_2-23-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libIlmImf-2_2-23-debuginfo-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libIlmImfUtil-2_2-23-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libIlmImfUtil-2_2-23-debuginfo-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"openexr-debuginfo-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"openexr-debugsource-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"openexr-devel-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", cpu:"x86_64", reference:"libIlmImf-2_2-23-32bit-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", cpu:"x86_64", reference:"libIlmImf-2_2-23-32bit-debuginfo-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", cpu:"x86_64", reference:"libIlmImfUtil-2_2-23-32bit-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", cpu:"x86_64", reference:"libIlmImfUtil-2_2-23-32bit-debuginfo-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"openexr-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"openexr-debuginfo-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"openexr-debugsource-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"openexr-doc-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libIlmImf-2_2-23-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libIlmImf-2_2-23-debuginfo-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libIlmImfUtil-2_2-23-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libIlmImfUtil-2_2-23-debuginfo-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"openexr-debuginfo-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"openexr-debugsource-2.2.1-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"openexr-devel-2.2.1-3.14.1")) 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, "openexr");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-4339-1. 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(136028);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/04/30");

  script_cve_id("CVE-2017-9111", "CVE-2017-9113", "CVE-2017-9115", "CVE-2018-18444", "CVE-2020-11758", "CVE-2020-11759", "CVE-2020-11760", "CVE-2020-11761", "CVE-2020-11762", "CVE-2020-11763", "CVE-2020-11764", "CVE-2020-11765");
  script_xref(name:"USN", value:"4339-1");

  script_name(english:"Ubuntu 16.04 LTS / 18.04 LTS / 19.10 / 20.04 : openexr vulnerabilities (USN-4339-1)");
  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:
"Brandon Perry discovered that OpenEXR incorrectly handled certain
malformed EXR image files. If a user were tricked into opening a
crafted EXR image file, a remote attacker could cause a denial of
service, or possibly execute arbitrary code. This issue only applied
to Ubuntu 20.04 LTS. (CVE-2017-9111, CVE-2017-9113, CVE-2017-9115)

Tan Jie discovered that OpenEXR incorrectly handled certain malformed
EXR image files. If a user were tricked into opening a crafted EXR
image file, a remote attacker could cause a denial of service, or
possibly execute arbitrary code. This issue only applied to Ubuntu
20.04 LTS. (CVE-2018-18444)

Samuel Gross discovered that OpenEXR incorrectly handled certain
malformed EXR image files. If a user were tricked into opening a
crafted EXR image file, a remote attacker could cause a denial of
service, or possibly execute arbitrary code. (CVE-2020-11758,
CVE-2020-11759, CVE-2020-11760, CVE-2020-11761, CVE-2020-11762,
CVE-2020-11763, CVE-2020-11764)

It was discovered that OpenEXR incorrectly handled certain malformed
EXR image files. If a user were tricked into opening a crafted EXR
image file, a remote attacker could cause a denial of service.
(CVE-2020-11765).

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/4339-1/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:R/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:canonical:ubuntu_linux:libopenexr22");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libopenexr23");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libopenexr24");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openexr");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:19.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/05/21");
  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:"Ubuntu Security Notice (C) 2020 Canonical, Inc. / NASL script (C) 2020 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:"^(16\.04|18\.04|19\.10|20\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 16.04 / 18.04 / 19.10 / 20.04", "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:"16.04", pkgname:"libopenexr22", pkgver:"2.2.0-10ubuntu2.2")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"openexr", pkgver:"2.2.0-10ubuntu2.2")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"libopenexr22", pkgver:"2.2.0-11.1ubuntu1.2")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"openexr", pkgver:"2.2.0-11.1ubuntu1.2")) flag++;
if (ubuntu_check(osver:"19.10", pkgname:"libopenexr23", pkgver:"2.2.1-4.1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"19.10", pkgname:"openexr", pkgver:"2.2.1-4.1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"20.04", pkgname:"libopenexr24", pkgver:"2.3.0-6ubuntu0.1")) flag++;
if (ubuntu_check(osver:"20.04", pkgname:"openexr", pkgver:"2.3.0-6ubuntu0.1")) 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, "libopenexr22 / libopenexr23 / libopenexr24 / openexr");
}