openSUSE 16: gdk-pixbuf-loader-libheif / libheif-aom / libheif-dav1d / etc (openSUSE-SU-2026:21644-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# openSUSE Security Update openSUSE-SU-2026:21644-1. The text itself
# is copyright (C) SUSE.
##

include('compat.inc');

if (description)
{
  script_id(341176);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/31");

  script_cve_id(
    "CVE-2026-62289",
    "CVE-2026-62291",
    "CVE-2026-62292",
    "CVE-2026-62377"
  );
  script_xref(name:"IAVB", value:"2026-B-0158");

  script_name(english:"openSUSE 16: gdk-pixbuf-loader-libheif / libheif-aom / libheif-dav1d / etc (openSUSE-SU-2026:21644-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote openSUSE host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the
openSUSE-SU-2026:21644-1 advisory.

    Update to version 1.23.1 (jsc#PED-16355).

    Security issues fixed:

    - CVE-2026-62289: integer underflow in Fraction constructor via double clap transform application
    (bsc#1273079).
    - CVE-2026-62291: heap out-of-bounds write in the uncompressed encoder when writing images with mismatched
    auxiliary
      alpha dimensions (bsc#1273080).
    - CVE-2026-62292: out-of-bounds read in uncompressed unci tile range slicing (bsc#1273081).
    - CVE-2026-62377: reachable assertion in `HeifContext::get_track()` aborts on a valid-but-empty HEIF
    sequence file
      (bsc#1273082).
    - Heap out-of-bounds write in the uncompressed encoder for RRGGBB images with interleaved bit-depth `<= 8`
      (bsc#1273083).

    Changes for libheif:

    - Version 1.23.1
      - FFmpeg decoder plugin gains AV1, VVC, JPEG, and JPEG 2000/HTJ2K decoding.
      - SVT-AV1 encoder: new `tune=iq` and `ms-ssim` tune parameters.
      - C++ API: added getters/setters for the CLLI and MDCV HDR metadata boxes.
      - Sequence decoder now scales the alpha auxiliary track to the main image size.
      - Fixed pixi box writing for multi-channel images.
      - Corrected the placement of the TAI `clock_type` field into the top 2 bits.
      - Empty/unset plugin directory is no longer scanned.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

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://bugzilla.suse.com/1273079");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1273080");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1273081");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1273082");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1273083");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2026-62289");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2026-62291");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2026-62292");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2026-62377");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/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:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-62291");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2026-62292");

  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:"2026/06/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/28");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gdk-pixbuf-loader-libheif");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libheif-aom");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libheif-dav1d");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libheif-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libheif-ffmpeg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libheif-jpeg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libheif-openh264");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libheif-openjpeg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libheif-rav1e");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libheif-svtenc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libheif1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:16.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2026 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('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/SuSE/release');
if (isnull(os_release) || os_release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, 'openSUSE');
var _os_ver = pregmatch(pattern: "^SUSE([\d.]+)", string:os_release);
if (isnull(_os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'openSUSE');
_os_ver = _os_ver[1];
if (os_release !~ "^(SUSE16\.0)$") audit(AUDIT_OS_RELEASE_NOT, 'openSUSE', '16.0', os_release);
if (!get_kb_item("Host/SuSE/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, 'openSUSE ' + _os_ver, cpu);

var pkgs = [
    {'reference':'gdk-pixbuf-loader-libheif-1.23.1-160000.1.1', 'release':'SUSE16.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libheif-aom-1.23.1-160000.1.1', 'release':'SUSE16.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libheif-dav1d-1.23.1-160000.1.1', 'release':'SUSE16.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libheif-devel-1.23.1-160000.1.1', 'release':'SUSE16.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libheif-ffmpeg-1.23.1-160000.1.1', 'release':'SUSE16.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libheif-jpeg-1.23.1-160000.1.1', 'release':'SUSE16.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libheif-openh264-1.23.1-160000.1.1', 'release':'SUSE16.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libheif-openjpeg-1.23.1-160000.1.1', 'release':'SUSE16.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libheif-rav1e-1.23.1-160000.1.1', 'release':'SUSE16.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libheif-svtenc-1.23.1-160000.1.1', 'cpu':'aarch64', 'release':'SUSE16.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libheif-svtenc-1.23.1-160000.1.1', 'cpu':'x86_64', 'release':'SUSE16.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libheif1-1.23.1-160000.1.1', 'release':'SUSE16.0', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var _cpu = NULL;
  var rpm_spec_vers_cmp = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (reference && _release) {
    if (rpm_check(release:_release, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) 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, 'gdk-pixbuf-loader-libheif / libheif-aom / libheif-dav1d / etc');
}