Vulnerabilities > CVE-2020-12268 - Out-of-bounds Write vulnerability in multiple products

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2020:1212-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(136652);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/19");

  script_cve_id("CVE-2020-12268");

  script_name(english:"SUSE SLES12 Security Update : ghostscript (SUSE-SU-2020:1212-1)");
  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 ghostscript to version 9.52 fixes the following 
issues :

CVE-2020-12268: Fixed a heap-based buffer overflow in
jbig2_image_compose (bsc#1170603).

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=1170603"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-12268/"
  );
  # https://www.suse.com/support/update/announcement/2020/suse-su-20201212-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?bd271559"
  );
  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 OpenStack Cloud Crowbar 8 :

zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-8-2020-1212=1

SUSE OpenStack Cloud 8 :

zypper in -t patch SUSE-OpenStack-Cloud-8-2020-1212=1

SUSE OpenStack Cloud 7 :

zypper in -t patch SUSE-OpenStack-Cloud-7-2020-1212=1

SUSE Linux Enterprise Software Development Kit 12-SP5 :

zypper in -t patch SUSE-SLE-SDK-12-SP5-2020-1212=1

SUSE Linux Enterprise Software Development Kit 12-SP4 :

zypper in -t patch SUSE-SLE-SDK-12-SP4-2020-1212=1

SUSE Linux Enterprise Server for SAP 12-SP3 :

zypper in -t patch SUSE-SLE-SAP-12-SP3-2020-1212=1

SUSE Linux Enterprise Server for SAP 12-SP2 :

zypper in -t patch SUSE-SLE-SAP-12-SP2-2020-1212=1

SUSE Linux Enterprise Server for SAP 12-SP1 :

zypper in -t patch SUSE-SLE-SAP-12-SP1-2020-1212=1

SUSE Linux Enterprise Server 12-SP5 :

zypper in -t patch SUSE-SLE-SERVER-12-SP5-2020-1212=1

SUSE Linux Enterprise Server 12-SP4 :

zypper in -t patch SUSE-SLE-SERVER-12-SP4-2020-1212=1

SUSE Linux Enterprise Server 12-SP3-LTSS :

zypper in -t patch SUSE-SLE-SERVER-12-SP3-2020-1212=1

SUSE Linux Enterprise Server 12-SP3-BCL :

zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2020-1212=1

SUSE Linux Enterprise Server 12-SP2-LTSS :

zypper in -t patch SUSE-SLE-SERVER-12-SP2-2020-1212=1

SUSE Linux Enterprise Server 12-SP2-BCL :

zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2020-1212=1

SUSE Linux Enterprise Server 12-SP1-LTSS :

zypper in -t patch SUSE-SLE-SERVER-12-SP1-2020-1212=1

SUSE Enterprise Storage 5 :

zypper in -t patch SUSE-Storage-5-2020-1212=1

HPE Helion Openstack 8 :

zypper in -t patch HPE-Helion-OpenStack-8-2020-1212=1"
  );
  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:suse_linux:ghostscript");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ghostscript-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ghostscript-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ghostscript-x11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ghostscript-x11-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libspectre-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libspectre1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libspectre1-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/05/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/15");
  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/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:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE 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:"^(1|2|3|4|5)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP1/2/3/4/5", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"1", reference:"ghostscript-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"ghostscript-debuginfo-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"ghostscript-debugsource-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"ghostscript-x11-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"ghostscript-x11-debuginfo-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libspectre-debugsource-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libspectre1-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libspectre1-debuginfo-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"ghostscript-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"ghostscript-debuginfo-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"ghostscript-debugsource-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"ghostscript-x11-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"ghostscript-x11-debuginfo-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libspectre-debugsource-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libspectre1-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libspectre1-debuginfo-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"ghostscript-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"ghostscript-debuginfo-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"ghostscript-debugsource-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"ghostscript-x11-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"ghostscript-x11-debuginfo-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"libspectre-debugsource-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"libspectre1-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"libspectre1-debuginfo-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-debuginfo-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-debugsource-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-x11-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-x11-debuginfo-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libspectre-debugsource-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libspectre1-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libspectre1-debuginfo-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"ghostscript-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"ghostscript-debuginfo-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"ghostscript-debugsource-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"ghostscript-x11-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"ghostscript-x11-debuginfo-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libspectre-debugsource-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libspectre1-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libspectre1-debuginfo-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-debuginfo-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-debugsource-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-x11-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-x11-debuginfo-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libspectre-debugsource-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libspectre1-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libspectre1-debuginfo-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"ghostscript-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"ghostscript-debuginfo-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"ghostscript-debugsource-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"ghostscript-x11-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"ghostscript-x11-debuginfo-9.52-23.34.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"libspectre-debugsource-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"libspectre1-0.2.7-12.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"libspectre1-debuginfo-0.2.7-12.10.1")) 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, "ghostscript");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2020-653.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(136491);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/14");

  script_cve_id("CVE-2020-12268");

  script_name(english:"openSUSE Security Update : ghostscript (openSUSE-2020-653)");
  script_summary(english:"Check for the openSUSE-2020-653 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 ghostscript to version 9.52 fixes the following 
issues :

  - CVE-2020-12268: Fixed a heap-based buffer overflow in
    jbig2_image_compose (bsc#1170603).

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=1170603"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected ghostscript 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:ghostscript");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-mini");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-mini-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-mini-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-mini-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-x11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ghostscript-x11-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libspectre-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libspectre-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libspectre1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libspectre1-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/05/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/12");
  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:"ghostscript-9.52-lp151.3.12.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"ghostscript-debuginfo-9.52-lp151.3.12.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"ghostscript-debugsource-9.52-lp151.3.12.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"ghostscript-devel-9.52-lp151.3.12.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"ghostscript-mini-9.52-lp151.3.12.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"ghostscript-mini-debuginfo-9.52-lp151.3.12.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"ghostscript-mini-debugsource-9.52-lp151.3.12.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"ghostscript-mini-devel-9.52-lp151.3.12.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"ghostscript-x11-9.52-lp151.3.12.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", reference:"ghostscript-x11-debuginfo-9.52-lp151.3.12.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", cpu:"x86_64", reference:"libspectre-debugsource-0.2.8-lp151.3.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", cpu:"x86_64", reference:"libspectre-devel-0.2.8-lp151.3.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", cpu:"x86_64", reference:"libspectre1-0.2.8-lp151.3.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.1", cpu:"x86_64", reference:"libspectre1-debuginfo-0.2.8-lp151.3.3.1") ) 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, "ghostscript-mini / ghostscript-mini-debuginfo / etc");
}