SUSE SLED15 / SLES15 Security Update : nghttp2 (SUSE-SU-2020:0722-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2020:0722-1.
# The text itself is copyright (C) SUSE.
#

include('compat.inc');

if (description)
{
  script_id(134757);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/21");

  script_cve_id("CVE-2019-18802");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : nghttp2 (SUSE-SU-2020:0722-1)");

  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 nghttp2 fixes the following issues :

nghttp2 was update to version 1.40.0 (bsc#1166481)

lib: Add nghttp2_check_authority as public API

lib: Fix the bug that stream is closed with wrong error code

lib: Faster huffman encoding and decoding

build: Avoid filename collision of static and dynamic lib

build: Add new flag ENABLE_STATIC_CRT for Windows

build: cmake: Support building nghttpx with systemd

third-party: Update neverbleed to fix memory leak

nghttpx: Fix bug that mruby is incorrectly shared between backends

nghttpx: Reconnect h1 backend if it lost connection before sending
headers

nghttpx: Returns 408 if backend timed out before sending headers

nghttpx: Fix request stal

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=1159003");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1166481");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-18802/");
  # https://www.suse.com/support/update/announcement/2020/suse-su-20200722-1/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ec5d2c0f");
  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-SP1-2020-722=1

SUSE Linux Enterprise Module for Basesystem 15-SP1:zypper in -t patch
SUSE-SLE-Module-Basesystem-15-SP1-2020-722=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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-18802");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/12/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/03/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/03/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libnghttp2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libnghttp2-14");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libnghttp2-14-32bit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libnghttp2-14-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libnghttp2-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libnghttp2_asio-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libnghttp2_asio1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libnghttp2_asio1-32bit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libnghttp2_asio1-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:nghttp2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:nghttp2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:nghttp2-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python3-nghttp2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python3-nghttp2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  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:"^(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:"libnghttp2-14-32bit-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLES15", sp:"1", cpu:"x86_64", reference:"libnghttp2-14-32bit-debuginfo-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLES15", sp:"1", cpu:"x86_64", reference:"libnghttp2_asio1-32bit-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLES15", sp:"1", cpu:"x86_64", reference:"libnghttp2_asio1-32bit-debuginfo-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libnghttp2-14-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libnghttp2-14-debuginfo-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libnghttp2-devel-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libnghttp2_asio-devel-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libnghttp2_asio1-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libnghttp2_asio1-debuginfo-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"nghttp2-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"nghttp2-debuginfo-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"nghttp2-debugsource-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"python3-nghttp2-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"python3-nghttp2-debuginfo-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", cpu:"x86_64", reference:"libnghttp2-14-32bit-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", cpu:"x86_64", reference:"libnghttp2-14-32bit-debuginfo-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", cpu:"x86_64", reference:"libnghttp2_asio1-32bit-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", cpu:"x86_64", reference:"libnghttp2_asio1-32bit-debuginfo-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libnghttp2-14-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libnghttp2-14-debuginfo-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libnghttp2-devel-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libnghttp2_asio-devel-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libnghttp2_asio1-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libnghttp2_asio1-debuginfo-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"nghttp2-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"nghttp2-debuginfo-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"nghttp2-debugsource-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"python3-nghttp2-1.40.0-3.6.3")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"python3-nghttp2-debuginfo-1.40.0-3.6.3")) 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, "nghttp2");
}