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nessusThis script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.SUSE_SU-2020-2097-1.NASL
HistoryJul 31, 2020 - 12:00 a.m.

SUSE SLES12 Security Update : ghostscript (SUSE-SU-2020:2097-1)

2020-07-3100:00:00
This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
32
suse sles12
security update
ghostscript
memory corruption
safer sandbox breakout
cve-2020-15900
vulnerability update

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.6

Confidence

High

EPSS

0.007

Percentile

80.0%

This update for ghostscript fixes the following issues :

fixed CVE-2020-15900 Memory Corruption (SAFER Sandbox Breakout) cf.
https://bugs.ghostscript.com/show_bug.cgi?id=702582 (bsc#1174415)

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.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2020:2097-1.
# The text itself is copyright (C) SUSE.
#

include('compat.inc');

if (description)
{
  script_id(139223);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/27");

  script_cve_id("CVE-2020-15900");

  script_name(english:"SUSE SLES12 Security Update : ghostscript (SUSE-SU-2020:2097-1)");

  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 fixes the following issues :

fixed CVE-2020-15900 Memory Corruption (SAFER Sandbox Breakout) cf.
https://bugs.ghostscript.com/show_bug.cgi?id=702582 (bsc#1174415)

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://bugs.ghostscript.com/show_bug.cgi?id=702582");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1174415");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-15900/");
  # https://www.suse.com/support/update/announcement/2020/suse-su-20202097-1
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e84e0d7e");
  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 9 :

zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2020-2097=1

SUSE OpenStack Cloud Crowbar 8 :

zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-8-2020-2097=1

SUSE OpenStack Cloud 9 :

zypper in -t patch SUSE-OpenStack-Cloud-9-2020-2097=1

SUSE OpenStack Cloud 8 :

zypper in -t patch SUSE-OpenStack-Cloud-8-2020-2097=1

SUSE OpenStack Cloud 7 :

zypper in -t patch SUSE-OpenStack-Cloud-7-2020-2097=1

SUSE Linux Enterprise Software Development Kit 12-SP5 :

zypper in -t patch SUSE-SLE-SDK-12-SP5-2020-2097=1

SUSE Linux Enterprise Server for SAP 12-SP4 :

zypper in -t patch SUSE-SLE-SAP-12-SP4-2020-2097=1

SUSE Linux Enterprise Server for SAP 12-SP3 :

zypper in -t patch SUSE-SLE-SAP-12-SP3-2020-2097=1

SUSE Linux Enterprise Server for SAP 12-SP2 :

zypper in -t patch SUSE-SLE-SAP-12-SP2-2020-2097=1

SUSE Linux Enterprise Server 12-SP5 :

zypper in -t patch SUSE-SLE-SERVER-12-SP5-2020-2097=1

SUSE Linux Enterprise Server 12-SP4-LTSS :

zypper in -t patch SUSE-SLE-SERVER-12-SP4-LTSS-2020-2097=1

SUSE Linux Enterprise Server 12-SP3-LTSS :

zypper in -t patch SUSE-SLE-SERVER-12-SP3-2020-2097=1

SUSE Linux Enterprise Server 12-SP3-BCL :

zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2020-2097=1

SUSE Linux Enterprise Server 12-SP2-LTSS :

zypper in -t patch SUSE-SLE-SERVER-12-SP2-2020-2097=1

SUSE Linux Enterprise Server 12-SP2-BCL :

zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2020-2097=1

SUSE Enterprise Storage 5 :

zypper in -t patch SUSE-Storage-5-2020-2097=1

HPE Helion Openstack 8 :

zypper in -t patch HPE-Helion-OpenStack-8-2020-2097=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:"cvss_score_source", value:"CVE-2020-15900");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/07/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/07/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/31");

  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:"cpe:/o:novell:suse_linux:12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"SuSE Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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:"^(2|3|4|5)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2/3/4/5", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"4", reference:"ghostscript-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"ghostscript-debuginfo-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"ghostscript-debugsource-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"ghostscript-x11-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"ghostscript-x11-debuginfo-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-debuginfo-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-debugsource-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-x11-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ghostscript-x11-debuginfo-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-debuginfo-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-debugsource-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-x11-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ghostscript-x11-debuginfo-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"ghostscript-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"ghostscript-debuginfo-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"ghostscript-debugsource-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"ghostscript-x11-9.52-23.39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"ghostscript-x11-debuginfo-9.52-23.39.1")) 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");
}

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.6

Confidence

High

EPSS

0.007

Percentile

80.0%