Debian dla-4368 : libarchive-dev - security update

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-4368. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(274817);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/30");

  script_cve_id(
    "CVE-2025-5914",
    "CVE-2025-5916",
    "CVE-2025-5917",
    "CVE-2025-5918"
  );
  script_xref(name:"IAVA", value:"2024-A-0834-S");
  script_xref(name:"IAVA", value:"2025-A-0551-S");

  script_name(english:"Debian dla-4368 : libarchive-dev - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-4368 advisory.

    - -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4368-1                [email protected]
    https://www.debian.org/lts/security/                   Bastien Roucaris
    November 11, 2025                             https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : libarchive
    Version        : 3.4.3-2+deb11u3
    CVE ID         : CVE-2025-5914 CVE-2025-5916 CVE-2025-5917 CVE-2025-5918
    Debian Bug     : 1107621 1107623 1107624 1107626

    Multiple vulnerabilties were fixed in libarchive a multi-format archive
    and compression library.

    CVE-2025-5914

        A vulnerability has been identified in the libarchive library,
        specifically within the archive_read_format_rar_seek_data() function.
        This flaw involves an integer overflow that can ultimately lead to
        a double-free condition. Exploiting a double-free vulnerability can
        result in memory corruption, enabling an attacker to execute
        arbitrary code or cause a denial-of-service condition.

    CVE-2025-5916

        This flaw involves an integer overflow that can be triggered
        when processing a Web Archive (WARC) file that claims to have more
        than INT64_MAX - 4 content bytes. An attacker could craft a malicious
        WARC archive to induce this overflow, potentially leading to
        unpredictable program behavior, memory corruption, or a
        denial-of-service condition within applications that process
        such archives using libarchive.

    CVE-2025-5917

        This flaw involves an 'off-by-one' miscalculation when
        handling prefixes and suffixes for file names. This can lead to
        a 1-byte write overflow. While seemingly small, such an overflow
        can corrupt adjacent memory, leading to unpredictable program behavior,
        crashes, or in specific circumstances, could be leveraged as
        a building block for more sophisticated exploitation.

    CVE-2025-5918

        This flaw can be triggered when file streams are piped into bsdtar,
        potentially allowing for reading past the end of the file.
        This out-of-bounds read can lead to unintended consequences,
        including unpredictable program behavior, memory corruption,
        or a denial-of-service condition.

    For Debian 11 bullseye, these problems have been fixed in version
    3.4.3-2+deb11u3.

    We recommend that you upgrade your libarchive packages.

    For the detailed security status of libarchive please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/libarchive

    Further information about Debian LTS security advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian 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://security-tracker.debian.org/tracker/source-package/libarchive");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-5914");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-5916");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-5917");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-5918");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/libarchive");
  script_set_attribute(attribute:"solution", value:
"Upgrade the libarchive-dev packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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-2025-5914");

  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:"2025/06/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/11/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/11/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libarchive-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libarchive-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libarchive13");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  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:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('debian_package.inc');

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);

var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(11)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 11.0', 'Debian ' + debian_release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);

var pkgs = [
    {'release': '11.0', 'prefix': 'libarchive-dev', 'reference': '3.4.3-2+deb11u3'},
    {'release': '11.0', 'prefix': 'libarchive-tools', 'reference': '3.4.3-2+deb11u3'},
    {'release': '11.0', 'prefix': 'libarchive13', 'reference': '3.4.3-2+deb11u3'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var _release = NULL;
  var prefix = NULL;
  var reference = NULL;
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (_release && prefix && reference) {
    if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : deb_report_get()
  );
  exit(0);
}
else
{
  var tested = deb_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libarchive-dev / libarchive-tools / libarchive13');
}