Ubuntu: Security Advisory (USN-1771-1)

# SPDX-FileCopyrightText: 2022 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("1.3.6.1.4.1.25623.1.1.12.2013.1771.1");
  script_cve_id("CVE-2013-0335", "CVE-2013-1838");
  script_tag(name:"creation_date", value:"2022-08-26 07:43:23 +0000 (Fri, 26 Aug 2022)");
  script_version("2024-02-02T05:06:09+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:09 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"6.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:S/C:P/I:P/A:P");

  script_name("Ubuntu: Security Advisory (USN-1771-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 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(11\.10|12\.04\ LTS|12\.10)");

  script_xref(name:"Advisory-ID", value:"USN-1771-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-1771-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'nova' package(s) announced via the USN-1771-1 advisory.");

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

  script_tag(name:"insight", value:"Loganathan Parthipan discovered that Nova did not properly validate VNC
tokens after an instance was deleted. An authenticated attacker could
exploit this to access other virtual machines under certain circumstances.
This issue did not affect Ubuntu 11.10. (CVE-2013-0335)

Vish Ishaya discovered that Nova did not always enforce quotas on fixed
IPs. An authenticated attacker could exploit this to cause a denial of
service via resource consumption. Nova will now enforce a quota limit of
10 fixed IPs per instance, which is configurable via 'quota_fixed_ips'
in /etc/nova/nova.conf. (CVE-2013-1838)");

  script_tag(name:"affected", value:"'nova' package(s) on Ubuntu 11.10, Ubuntu 12.04, Ubuntu 12.10.");

  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 == "UBUNTU11.10") {

  if(!isnull(res = isdpkgvuln(pkg:"python-nova", ver:"2011.3-0ubuntu6.13", rls:"UBUNTU11.10"))) {
    report += res;
  }

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

if(release == "UBUNTU12.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"python-nova", ver:"2012.1.3+stable-20120827-4d2a4afe-0ubuntu1.4", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU12.10") {

  if(!isnull(res = isdpkgvuln(pkg:"python-nova", ver:"2012.2.1+stable-20121212-a99a802e-0ubuntu1.4", rls:"UBUNTU12.10"))) {
    report += res;
  }

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

exit(0);