php -- readfile() DoS vulnerability

# SPDX-FileCopyrightText: 2008 E-Soft Inc.
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.52143");
  script_version("2023-07-26T05:05:09+0000");
  script_tag(name:"last_modification", value:"2023-07-26 05:05:09 +0000 (Wed, 26 Jul 2023)");
  script_tag(name:"creation_date", value:"2008-09-04 20:41:11 +0200 (Thu, 04 Sep 2008)");
  script_cve_id("CVE-2005-0596");
  script_tag(name:"cvss_base", value:"2.1");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:N/I:N/A:P");
  script_name("php -- readfile() DoS vulnerability");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2008 E-Soft Inc.");
  script_family("FreeBSD Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/freebsd", "ssh/login/freebsdrel");

  script_tag(name:"insight", value:"The following packages are affected:

  mod_php4-twig
   php4-cgi
   php4-cli
   php4-dtc
   php4-horde
   php4-nms
   php4
   mod_php
   mod_php4

CVE-2005-0596
PHP 4 (PHP4) allows attackers to cause a denial of service (daemon
crash) by using the readfile function on a file whose size is a
multiple of the page size.");

  script_tag(name:"solution", value:"Update your system with the appropriate patches or
  software upgrades.");

  script_xref(name:"URL", value:"http://bugs.php.net/bug.php?id=27037");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/12665");
  script_xref(name:"URL", value:"http://www.novell.com/linux/security/advisories/2005_06_sr.html");
  script_xref(name:"URL", value:"http://www.vuxml.org/freebsd/07f3fe15-a9de-11d9-a788-0001020eed82.html");

  script_tag(name:"summary", value:"The remote host is missing an update to the system
  as announced in the referenced advisory.");

  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-bsd.inc");

vuln = FALSE;
txt = "";

bver = portver(pkg:"mod_php4-twig");
if(!isnull(bver) && revcomp(a:bver, b:"4.3.5_7")<0) {
  txt += 'Package mod_php4-twig version ' + bver + ' is installed which is known to be vulnerable.\n';
  vuln = TRUE;
}
bver = portver(pkg:"php4-cgi");
if(!isnull(bver) && revcomp(a:bver, b:"4.3.5_7")<0) {
  txt += 'Package php4-cgi version ' + bver + ' is installed which is known to be vulnerable.\n';
  vuln = TRUE;
}
bver = portver(pkg:"php4-cli");
if(!isnull(bver) && revcomp(a:bver, b:"4.3.5_7")<0) {
  txt += 'Package php4-cli version ' + bver + ' is installed which is known to be vulnerable.\n';
  vuln = TRUE;
}
bver = portver(pkg:"php4-dtc");
if(!isnull(bver) && revcomp(a:bver, b:"4.3.5_7")<0) {
  txt += 'Package php4-dtc version ' + bver + ' is installed which is known to be vulnerable.\n';
  vuln = TRUE;
}
bver = portver(pkg:"php4-horde");
if(!isnull(bver) && revcomp(a:bver, b:"4.3.5_7")<0) {
  txt += 'Package php4-horde version ' + bver + ' is installed which is known to be vulnerable.\n';
  vuln = TRUE;
}
bver = portver(pkg:"php4-nms");
if(!isnull(bver) && revcomp(a:bver, b:"4.3.5_7")<0) {
  txt += 'Package php4-nms version ' + bver + ' is installed which is known to be vulnerable.\n';
  vuln = TRUE;
}
bver = portver(pkg:"php4");
if(!isnull(bver) && revcomp(a:bver, b:"4.3.5_7")<0) {
  txt += 'Package php4 version ' + bver + ' is installed which is known to be vulnerable.\n';
  vuln = TRUE;
}
bver = portver(pkg:"mod_php");
if(!isnull(bver) && revcomp(a:bver, b:"4.3.5_7,1")<0) {
  txt += 'Package mod_php version ' + bver + ' is installed which is known to be vulnerable.\n';
  vuln = TRUE;
}
bver = portver(pkg:"mod_php4");
if(!isnull(bver) && revcomp(a:bver, b:"4.3.5_7,1")<0) {
  txt += 'Package mod_php4 version ' + bver + ' is installed which is known to be vulnerable.\n';
  vuln = TRUE;
}

if(vuln) {
  security_message(data:txt);
} else if (__pkg_match) {
  exit(99);
}