Ubuntu: Security Advisory (USN-992-1)

# SPDX-FileCopyrightText: 2010 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("1.3.6.1.4.1.25623.1.0.840511");
  script_cve_id("CVE-2009-0758", "CVE-2010-2244");
  script_tag(name:"creation_date", value:"2010-10-01 14:10:21 +0000 (Fri, 01 Oct 2010)");
  script_version("2024-02-02T05:06:04+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:04 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");

  script_name("Ubuntu: Security Advisory (USN-992-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2010 Greenbone AG");
  script_family("Ubuntu Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/ubuntu_linux", "ssh/login/packages", re:"ssh/login/release=UBUNTU(10\.04\ LTS|8\.04\ LTS|9\.04|9\.10)");

  script_xref(name:"Advisory-ID", value:"USN-992-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-992-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'avahi' package(s) announced via the USN-992-1 advisory.");

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

  script_tag(name:"insight", value:"It was discovered that Avahi incorrectly handled certain mDNS query packets
when the reflector feature is enabled, which is not the default
configuration on Ubuntu. A remote attacker could send crafted mDNS queries
and perform a denial of service on the server and on the network. This
issue only affected Ubuntu 8.04 LTS and 9.04. (CVE-2009-0758)

It was discovered that Avahi incorrectly handled mDNS packets with
corrupted checksums. A remote attacker could send crafted mDNS packets and
cause Avahi to crash, resulting in a denial of service. (CVE-2010-2244)");

  script_tag(name:"affected", value:"'avahi' package(s) on Ubuntu 8.04, Ubuntu 9.04, Ubuntu 9.10, Ubuntu 10.04.");

  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 == "UBUNTU10.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"libavahi-core6", ver:"0.6.25-1ubuntu6.1", rls:"UBUNTU10.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU8.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"libavahi-core5", ver:"0.6.22-2ubuntu4.2", rls:"UBUNTU8.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU9.04") {

  if(!isnull(res = isdpkgvuln(pkg:"libavahi-core5", ver:"0.6.23-4ubuntu4.1", rls:"UBUNTU9.04"))) {
    report += res;
  }

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

if(release == "UBUNTU9.10") {

  if(!isnull(res = isdpkgvuln(pkg:"libavahi-core6", ver:"0.6.25-1ubuntu5.2", rls:"UBUNTU9.10"))) {
    report += res;
  }

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

exit(0);