SUSE SLED15 / SLES15 Security Update : libseccomp (SUSE-SU-2019:2517-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2019:2517-1.
# The text itself is copyright (C) SUSE.
#

include('compat.inc');

if (description)
{
  script_id(129555);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/19");

  script_cve_id("CVE-2019-9893");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : libseccomp (SUSE-SU-2019:2517-1)");

  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 libseccomp fixes the following issues :

Security issues fixed :

CVE-2019-9893: An incorrect generation of syscall filters in
libseccomp was fixed (bsc#1128828)

libseccomp was updated to new upstream release 2.4.1: Fix a BPF
generation bug where the optimizer mistakenly identified duplicate BPF
code blocks.

libseccomp was updated to 2.4.0 (bsc#1128828 CVE-2019-9893): Update
the syscall table for Linux v5.0-rc5

Added support for the SCMP_ACT_KILL_PROCESS action

Added support for the SCMP_ACT_LOG action and SCMP_FLTATR_CTL_LOG
attribute

Added explicit 32-bit (SCMP_AX_32(...)) and 64-bit (SCMP_AX_64(...))
argument comparison macros to help protect against unexpected sign
extension

Added support for the parisc and parisc64 architectures

Added the ability to query and set the libseccomp API level via
seccomp_api_get(3) and seccomp_api_set(3)

Return -EDOM on an endian mismatch when adding an architecture to a
filter

Renumber the pseudo syscall number for subpage_prot() so it no longer
conflicts with spu_run()

Fix PFC generation when a syscall is prioritized, but no rule exists

Numerous fixes to the seccomp-bpf filter generation code

Switch our internal hashing function to jhash/Lookup3 to MurmurHash3

Numerous tests added to the included test suite, coverage now at ~92%

Update our Travis CI configuration to use Ubuntu 16.04

Numerous documentation fixes and updates

libseccomp was updated to release 2.3.3: Updated the syscall table for
Linux v4.15-rc7

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=1082318");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1128828");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1142614");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-9893/");
  # https://www.suse.com/support/update/announcement/2019/suse-su-20192517-1/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3a1c0649");
  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-SP1-2019-2517=1

SUSE Linux Enterprise Module for Open Buildservice Development Tools
15:zypper in -t patch
SUSE-SLE-Module-Development-Tools-OBS-15-2019-2517=1

SUSE Linux Enterprise Module for Basesystem 15-SP1:zypper in -t patch
SUSE-SLE-Module-Basesystem-15-SP1-2019-2517=1

SUSE Linux Enterprise Module for Basesystem 15:zypper in -t patch
SUSE-SLE-Module-Basesystem-15-2019-2517=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-2019-9893");

  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:"2019/03/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/10/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/03");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libseccomp-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libseccomp-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libseccomp-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libseccomp-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libseccomp2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libseccomp2-32bit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libseccomp2-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) 2019-2024 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:"^(0|1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP0/1", os_ver + " SP" + sp);
if (os_ver == "SLED15" && (! preg(pattern:"^(0|1)$", string:sp))) audit(AUDIT_OS_NOT, "SLED15 SP0/1", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES15", sp:"1", cpu:"x86_64", reference:"libseccomp2-32bit-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", cpu:"x86_64", reference:"libseccomp2-32bit-debuginfo-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libseccomp-debugsource-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libseccomp-devel-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libseccomp-tools-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libseccomp-tools-debuginfo-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libseccomp2-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libseccomp2-debuginfo-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"libseccomp2-32bit-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"libseccomp2-32bit-debuginfo-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"libseccomp-debugsource-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"libseccomp-devel-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"libseccomp-tools-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"libseccomp-tools-debuginfo-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"libseccomp2-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"libseccomp2-debuginfo-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", cpu:"x86_64", reference:"libseccomp2-32bit-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", cpu:"x86_64", reference:"libseccomp2-32bit-debuginfo-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libseccomp-debugsource-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libseccomp-devel-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libseccomp-tools-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libseccomp-tools-debuginfo-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libseccomp2-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libseccomp2-debuginfo-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"libseccomp2-32bit-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"libseccomp2-32bit-debuginfo-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"libseccomp-debugsource-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"libseccomp-devel-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"libseccomp-tools-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"libseccomp-tools-debuginfo-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"libseccomp2-2.4.1-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"libseccomp2-debuginfo-2.4.1-3.3.1")) 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, "libseccomp");
}