SUSE SLED12 / SLES12 Security Update : procps (SUSE-SU-2018:1836-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:1836-1.
# The text itself is copyright (C) SUSE.
#

include('compat.inc');

if (description)
{
  script_id(110804);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/08/24");

  script_cve_id(
    "CVE-2018-1122",
    "CVE-2018-1123",
    "CVE-2018-1124",
    "CVE-2018-1125",
    "CVE-2018-1126"
  );
  script_xref(name:"IAVA", value:"2018-A-0174-S");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : procps (SUSE-SU-2018:1836-1)");

  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 procps fixes the following security issues :

  - CVE-2018-1122: Prevent local privilege escalation in
    top. If a user ran top with HOME unset in an
    attacker-controlled directory, the attacker could have
    achieved privilege escalation by exploiting one of
    several vulnerabilities in the config_file() function
    (bsc#1092100).

  - CVE-2018-1123: Prevent denial of service in ps via mmap
    buffer overflow. Inbuilt protection in ps maped a guard
    page at the end of the overflowed buffer, ensuring that
    the impact of this flaw is limited to a crash (temporary
    denial of service) (bsc#1092100).

  - CVE-2018-1124: Prevent multiple integer overflows
    leading to a heap corruption in file2strvec function.
    This allowed a privilege escalation for a local attacker
    who can create entries in procfs by starting processes,
    which could result in crashes or arbitrary code
    execution in proc utilities run by other users
    (bsc#1092100).

  - CVE-2018-1125: Prevent stack-based buffer overflow in
    pgrep. This vulnerability was mitigated by FORTIFY
    limiting the impact to a crash (bsc#1092100).

  - CVE-2018-1126: Ensure correct integer size in
    proc/alloc.* to prevent truncation/integer overflow
    issues (bsc#1092100).

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=1092100");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-1122/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-1123/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-1124/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-1125/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-1126/");
  # https://www.suse.com/support/update/announcement/2018/suse-su-20181836-1/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?51292c6e");
  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 Software Development Kit 12-SP3:zypper in -t
patch SUSE-SLE-SDK-12-SP3-2018-1242=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-2018-1242=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP3-2018-1242=1

SUSE CaaS Platform ALL :

To install this update, use the SUSE CaaS Platform Velum dashboard. It
will inform you if it detects new updates and let you then trigger
updating of the complete cluster in a controlled way.

OpenStack Cloud Magnum Orchestration 7:zypper in -t patch
SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2018-1242=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:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/05/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/06/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/06/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libprocps3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libprocps3-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:procps");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:procps-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:procps-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2018-2023 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:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / 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:"^(3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP3", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(3)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP3", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"3", reference:"libprocps3-3.3.9-11.11.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libprocps3-debuginfo-3.3.9-11.11.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"procps-3.3.9-11.11.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"procps-debuginfo-3.3.9-11.11.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"procps-debugsource-3.3.9-11.11.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libprocps3-3.3.9-11.11.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libprocps3-debuginfo-3.3.9-11.11.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"procps-3.3.9-11.11.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"procps-debuginfo-3.3.9-11.11.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"procps-debugsource-3.3.9-11.11.1")) 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, "procps");
}