Debian: Security Advisory (DLA-373-1)

# SPDX-FileCopyrightText: 2023 Greenbone AG
# 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("1.3.6.1.4.1.25623.1.1.1.2.2015.373");
  script_cve_id("CVE-2015-5312", "CVE-2015-7497", "CVE-2015-7498", "CVE-2015-7499", "CVE-2015-7500");
  script_tag(name:"creation_date", value:"2023-03-08 12:56:44 +0000 (Wed, 08 Mar 2023)");
  script_version("2024-02-02T05:06:10+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:10 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"7.1");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:N/A:C");

  script_name("Debian: Security Advisory (DLA-373-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2023 Greenbone AG");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB6");

  script_xref(name:"Advisory-ID", value:"DLA-373-1");
  script_xref(name:"URL", value:"https://www.debian.org/lts/security/2015/DLA-373-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'libxml2' package(s) announced via the DLA-373-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"Several vulnerabilities were discovered in libxml2, a library providing support to read, modify and write XML and HTML files. A remote attacker could provide a specially crafted XML or HTML file that, when processed by an application using libxml2, would cause that application to use an excessive amount of CPU, leak potentially sensitive information, or crash the application.

CVE-2015-5312

CPU exhaustion when processing specially crafted XML input.

CVE-2015-7497

Heap-based buffer overflow in xmlDictComputeFastQKey.

CVE-2015-7498

Heap-based buffer overflow in xmlParseXmlDecl.

CVE-2015-7499

Heap-based buffer overflow in xmlGROW.

CVE-2015-7500

Heap buffer overflow in xmlParseMisc.");

  script_tag(name:"affected", value:"'libxml2' package(s) on Debian 6.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

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

  exit(0);
}

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

release = dpkg_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "DEB6") {

  if(!isnull(res = isdpkgvuln(pkg:"libxml2", ver:"2.7.8.dfsg-2+squeeze16", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libxml2-dbg", ver:"2.7.8.dfsg-2+squeeze16", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libxml2-dev", ver:"2.7.8.dfsg-2+squeeze16", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libxml2-doc", ver:"2.7.8.dfsg-2+squeeze16", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libxml2-utils", ver:"2.7.8.dfsg-2+squeeze16", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"python-libxml2", ver:"2.7.8.dfsg-2+squeeze16", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"python-libxml2-dbg", ver:"2.7.8.dfsg-2+squeeze16", rls:"DEB6"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);