Ubuntu: Security Advisory (USN-2397-1)

# SPDX-FileCopyrightText: 2014 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("1.3.6.1.4.1.25623.1.0.842020");
  script_cve_id("CVE-2014-4975", "CVE-2014-8080");
  script_tag(name:"creation_date", value:"2014-11-05 05:22:31 +0000 (Wed, 05 Nov 2014)");
  script_version("2024-02-02T05:06:05+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:05 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");

  script_name("Ubuntu: Security Advisory (USN-2397-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2014 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(12\.04\ LTS|14\.04\ LTS|14\.10)");

  script_xref(name:"Advisory-ID", value:"USN-2397-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-2397-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'ruby1.8, ruby1.9.1, ruby2.0, ruby2.1' package(s) announced via the USN-2397-1 advisory.");

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

  script_tag(name:"insight", value:"Will Wood discovered that Ruby incorrectly handled the encodes() function.
An attacker could possibly use this issue to cause Ruby to crash, resulting
in a denial of service, or possibly execute arbitrary code. The default
compiler options for affected releases should reduce the vulnerability to a
denial of service. (CVE-2014-4975)

Willis Vandevanter discovered that Ruby incorrectly handled XML entity
expansion. An attacker could use this flaw to cause Ruby to consume large
amounts of resources, resulting in a denial of service. (CVE-2014-8080)");

  script_tag(name:"affected", value:"'ruby1.8, ruby1.9.1, ruby2.0, ruby2.1' package(s) on Ubuntu 12.04, Ubuntu 14.04, Ubuntu 14.10.");

  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 == "UBUNTU12.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"libruby1.8", ver:"1.8.7.352-2ubuntu1.5", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libruby1.9.1", ver:"1.9.3.0-1ubuntu2.9", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ruby1.8", ver:"1.8.7.352-2ubuntu1.5", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ruby1.9.1", ver:"1.9.3.0-1ubuntu2.9", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU14.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"libruby1.9.1", ver:"1.9.3.484-2ubuntu1.1", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libruby2.0", ver:"2.0.0.484-1ubuntu2.1", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ruby1.9.1", ver:"1.9.3.484-2ubuntu1.1", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ruby2.0", ver:"2.0.0.484-1ubuntu2.1", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU14.10") {

  if(!isnull(res = isdpkgvuln(pkg:"libruby2.0", ver:"2.0.0.484+really457-3ubuntu1.1", rls:"UBUNTU14.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libruby2.1", ver:"2.1.2-2ubuntu1.1", rls:"UBUNTU14.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ruby2.0", ver:"2.0.0.484+really457-3ubuntu1.1", rls:"UBUNTU14.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ruby2.1", ver:"2.1.2-2ubuntu1.1", rls:"UBUNTU14.10"))) {
    report += res;
  }

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

exit(0);