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Linux Distros Unpatched Vulnerability : CVE-2007-3303

🗓️ 24 Aug 2025 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com👁 1 Views

Unpatched CVE-2007-3303: Apache httpd Prefork MPM DoS via killing workers or forking processes

Related
Refs
Code
ReporterTitlePublishedViews
Family
Tenable Nessus
Apache 2.2.x < 2.2.6 Multiple Vulnerabilities (DoS, XSS, Info Disc)
14 Sep 200700:00
nessus
Tenable Nessus
Mandrake Linux Security Advisory : apache (MDKSA-2007:140)
5 Jul 200700:00
nessus
Tenable Nessus
Ubuntu 6.06 LTS / 6.10 / 7.04 : apache2 vulnerabilities (USN-499-1)
10 Nov 200700:00
nessus
CVE
CVE-2007-3303
20 Jun 200722:00
cve
Cvelist
CVE-2007-3303
20 Jun 200722:00
cvelist
Debian CVE
CVE-2007-3303
20 Jun 200722:00
debiancve
EUVD
EUVD-2007-3293
7 Oct 202500:30
euvd
NVD
CVE-2007-3303
20 Jun 200722:30
nvd
OSV
DEBIAN-CVE-2007-3303
20 Jun 200722:30
osv
OSV
ECHO-1E54-75FE-1AAE
28 May 202615:41
osv
Rows per page
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(254153);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/28");

  script_cve_id("CVE-2007-3303");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2007-3303");

  script_set_attribute(attribute:"synopsis", value:
"The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be
patched.");
  script_set_attribute(attribute:"description", value:
"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied
patch available.

  - Apache httpd 2.0.59 and 2.2.4, with the Prefork MPM module, allows local users to cause a denial of
    service via certain code sequences executed in a worker process that (1) stop request processing by
    killing all worker processes and preventing creation of replacements or (2) hang the system by forcing the
    master process to fork an arbitrarily large number of worker processes. NOTE: This might be an inherent
    design limitation of Apache with respect to worker processes in hosted environments. (CVE-2007-3303)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2007-3303");
  script_set_attribute(attribute:"solution", value:
"There is no known solution at this time.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:U/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:U/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2007-3303");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"vendor_unpatched", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/06/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/08/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:13.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:14.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache2");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

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

  script_dependencies("ssh_get_info2.nasl", "set_linux_os_id.nasl");
  script_require_keys("Host/cpu", "Host/local_checks_enabled", "global_settings/vendor_unpatched", "Host/OS/identifier");
  script_require_ports("Host/OS/Debian Linux-11", "Host/OS/Debian Linux-12", "Host/OS/Debian Linux-13", "Host/OS/Debian Linux-14");

  exit(0);
}

if (!get_kb_item("global_settings/vendor_unpatched")) exit(0, "Unpatched Vulnerabilities Detection not active.");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (empty_or_null(get_one_kb_item("Host/Debian/dpkg-l"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "Debian Linux-11": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "11",
        "pkgs": [
          {"reference": "apache2"},
          {"reference": "apache2-bin"},
          {"reference": "apache2-data"},
          {"reference": "apache2-dev"},
          {"reference": "apache2-doc"},
          {"reference": "apache2-ssl-dev"},
          {"reference": "apache2-suexec-custom"},
          {"reference": "apache2-suexec-pristine"},
          {"reference": "apache2-utils"},
          {"reference": "libapache2-mod-md"},
          {"reference": "libapache2-mod-proxy-uwsgi"}
        ]
      }
    ]
  },
  "Debian Linux-12": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "12",
        "pkgs": [
          {"reference": "apache2"},
          {"reference": "apache2-bin"},
          {"reference": "apache2-data"},
          {"reference": "apache2-dev"},
          {"reference": "apache2-doc"},
          {"reference": "apache2-ssl-dev"},
          {"reference": "apache2-suexec-custom"},
          {"reference": "apache2-suexec-pristine"},
          {"reference": "apache2-utils"},
          {"reference": "libapache2-mod-md"},
          {"reference": "libapache2-mod-proxy-uwsgi"}
        ]
      }
    ]
  },
  "Debian Linux-13": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "13",
        "pkgs": [
          {"reference": "apache2"},
          {"reference": "apache2-bin"},
          {"reference": "apache2-data"},
          {"reference": "apache2-dev"},
          {"reference": "apache2-doc"},
          {"reference": "apache2-ssl-dev"},
          {"reference": "apache2-suexec-custom"},
          {"reference": "apache2-suexec-pristine"},
          {"reference": "apache2-utils"}
        ]
      }
    ]
  },
  "Debian Linux-14": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14",
        "pkgs": [
          {"reference": "apache2"},
          {"reference": "apache2-bin"},
          {"reference": "apache2-data"},
          {"reference": "apache2-dev"},
          {"reference": "apache2-doc"},
          {"reference": "apache2-ssl-dev"},
          {"reference": "apache2-suexec-custom"},
          {"reference": "apache2-suexec-pristine"},
          {"reference": "apache2-utils"}
        ]
      }
    ]
  }
};

var distro_constraints_values = linux_unpatched::get_distro_constraints(distro_constraints_arr:distro_constraints_array);
if (empty_or_null(distro_constraints_values)) audit(AUDIT_HOST_NOT, 'affected');
var report = linux_unpatched::check_unpatched_constraints(distro_constraints_values:distro_constraints_values);

if (!empty_or_null(report))
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}

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28 Apr 2026 00:00Current
5.5Medium risk
Vulners AI Score5.5
CVSS 24.9
EPSS0.00085
1