FreeBSD Ports: libxml2

# 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("1.3.6.1.4.1.25623.1.0.61803");
  script_version("2024-02-05T05:05:38+0000");
  script_tag(name:"last_modification", value:"2024-02-05 05:05:38 +0000 (Mon, 05 Feb 2024)");
  script_tag(name:"creation_date", value:"2008-11-01 01:55:10 +0100 (Sat, 01 Nov 2008)");
  script_cve_id("CVE-2008-3281", "CVE-2008-3529");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2024-02-02 15:02:14 +0000 (Fri, 02 Feb 2024)");
  script_name("FreeBSD Ports: libxml2");
  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 package is affected: libxml2

CVE-2008-3281
libxml2 2.6.32 and earlier does not properly detect recursion during
entity expansion in an attribute value, which allows context-dependent
attackers to cause a denial of service (memory and CPU consumption)
via a crafted XML document.

CVE-2008-3529
Heap-based buffer overflow in the xmlParseAttValueComplex function in
parser.c in libxml2 before 2.7.0 allows context-dependent attackers to
cause a denial of service (crash) or possibly execute arbitrary code
via a long XML entity name.");

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

  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:"libxml2");
if(!isnull(bver) && revcomp(a:bver, b:"2.6.32_1")<0) {
  txt += 'Package libxml2 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);
}