Rocky Linux 8 : exiv2 (RLSA-2021:4173)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# Rocky Linux Security Advisory RLSA-2021:4173.
##

include('compat.inc');

if (description)
{
  script_id(184583);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/06");

  script_cve_id(
    "CVE-2021-3482",
    "CVE-2021-29457",
    "CVE-2021-29458",
    "CVE-2021-29463",
    "CVE-2021-29464",
    "CVE-2021-29470",
    "CVE-2021-29473",
    "CVE-2021-29623",
    "CVE-2021-31292",
    "CVE-2021-32617",
    "CVE-2021-37618",
    "CVE-2021-37619"
  );
  script_xref(name:"RLSA", value:"2021:4173");

  script_name(english:"Rocky Linux 8 : exiv2 (RLSA-2021:4173)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Rocky Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the
RLSA-2021:4173 advisory.

  - Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata
    of image files. A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow
    is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially
    exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a
    crafted image file. Note that this bug is only triggered when _writing_ the metadata, which is a less
    frequently used Exiv2 operation than _reading_ the metadata. For example, to trigger the bug in the Exiv2
    command-line application, you need to add an extra command-line argument such as `insert`. The bug is
    fixed in version v0.27.4. (CVE-2021-29457)

  - Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata
    of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. The out-of-bounds
    read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could
    potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick
    the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing
    the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to
    trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such
    as insert. The bug is fixed in version v0.27.4. (CVE-2021-29458, CVE-2021-29470)

  - Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata
    of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. The out-of-bounds
    read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could
    potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick
    the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing
    the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to
    trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such
    as `insert`. The bug is fixed in version v0.27.4. (CVE-2021-29463)

  - Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata
    of image files. A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow
    is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially
    exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a
    crafted image file. Note that this bug is only triggered when writing the metadata, which is a less
    frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2
    command-line application, you need to add an extra command-line argument such as `insert`. The bug is
    fixed in version v0.27.4. (CVE-2021-29464)

  - Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and
    ICC image metadata. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. Exiv2 is a
    command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image
    files. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file.
    An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if
    they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered
    when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For
    example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line
    argument such as `insert`. The bug is fixed in version v0.27.4. Please see our security policy for
    information about Exiv2 security. (CVE-2021-29473)

  - Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and
    ICC image metadata. A read of uninitialized memory was found in Exiv2 versions v0.27.3 and earlier. Exiv2
    is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of
    image files. The read of uninitialized memory is triggered when Exiv2 is used to read the metadata of a
    crafted image file. An attacker could potentially exploit the vulnerability to leak a few bytes of stack
    memory, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in
    version v0.27.4. (CVE-2021-29623)

  - An integer overflow in CrwMap::encode0x1810 of Exiv2 0.27.3 allows attackers to trigger a heap-based
    buffer overflow and cause a denial of service (DOS) via crafted metadata. (CVE-2021-31292)

  - Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata
    of image files. An inefficient algorithm (quadratic complexity) was found in Exiv2 versions v0.27.3 and
    earlier. The inefficient algorithm is triggered when Exiv2 is used to write metadata into a crafted image
    file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can
    trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.4. Note
    that this bug is only triggered when _writing_ the metadata, which is a less frequently used Exiv2
    operation than _reading_ the metadata. For example, to trigger the bug in the Exiv2 command-line
    application, you need to add an extra command-line argument such as `rm`. (CVE-2021-32617)

  - A flaw was found in Exiv2 in versions before and including 0.27.4-RC1. Improper input validation of the
    rawData.size property in Jp2Image::readMetadata() in jp2image.cpp can lead to a heap-based buffer overflow
    via a crafted JPG image containing malicious EXIF data. (CVE-2021-3482)

  - Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata
    of image files. An out-of-bounds read was found in Exiv2 versions v0.27.4 and earlier. The out-of-bounds
    read is triggered when Exiv2 is used to print the metadata of a crafted image file. An attacker could
    potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into
    running Exiv2 on a crafted image file. Note that this bug is only triggered when printing the image ICC
    profile, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p
    C`). The bug is fixed in version v0.27.5. (CVE-2021-37618)

  - Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata
    of image files. An out-of-bounds read was found in Exiv2 versions v0.27.4 and earlier. The out-of-bounds
    read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could
    potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick
    the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing
    the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to
    trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such
    as insert. The bug is fixed in version v0.27.5. (CVE-2021-37619)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://errata.rockylinux.org/RLSA-2021:4173");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1946314");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1952607");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1952612");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1953708");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1954065");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1961650");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1961691");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1978100");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1978105");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1989860");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1990330");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1992165");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1992174");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:L/AC:L/PR:N/UI:R/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-2021-29464");

  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:"2021/04/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/11/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:exiv2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:exiv2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:exiv2-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:exiv2-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:exiv2-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:exiv2-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:exiv2-libs-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:rocky:linux:8");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 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/RockyLinux/release", "Host/RockyLinux/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RockyLinux/release');
if (isnull(os_release) || 'Rocky Linux' >!< os_release) audit(AUDIT_OS_NOT, 'Rocky Linux');
var os_ver = pregmatch(pattern: "Rocky(?: Linux)? release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Rocky Linux');
os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Rocky Linux 8.x', 'Rocky Linux ' + os_ver);

if (!get_kb_item('Host/RockyLinux/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Rocky Linux', cpu);

var pkgs = [
    {'reference':'exiv2-0.27.4-5.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-0.27.4-5.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-debuginfo-0.27.4-5.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-debuginfo-0.27.4-5.el8', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-debuginfo-0.27.4-5.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-debugsource-0.27.4-5.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-debugsource-0.27.4-5.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-devel-0.27.4-5.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-devel-0.27.4-5.el8', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-devel-0.27.4-5.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-doc-0.27.4-5.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-libs-0.27.4-5.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-libs-0.27.4-5.el8', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-libs-0.27.4-5.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-libs-debuginfo-0.27.4-5.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-libs-debuginfo-0.27.4-5.el8', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-libs-debuginfo-0.27.4-5.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  var exists_check = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = 'Rocky-' + package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'exiv2 / exiv2-debuginfo / exiv2-debugsource / exiv2-devel / etc');
}