Debian DSA-1157-1 : ruby1.8 - several vulnerabilities

#%NASL_MIN_LEVEL 70300

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-1157. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(22699);
  script_version("1.16");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2006-1931", "CVE-2006-3694");
  script_xref(name:"DSA", value:"1157");

  script_name(english:"Debian DSA-1157-1 : ruby1.8 - several vulnerabilities");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several vulnerabilities have been discovered in the interpreter for
the Ruby language, which may lead to the bypass of security
restrictions or denial of service. The Common Vulnerabilities and
Exposures project identifies the following problems :

  - CVE-2006-1931
    It was discovered that the use of blocking sockets can
    lead to denial of service.

  - CVE-2006-3964
    It was discovered that Ruby does not properly maintain
    'safe levels' for aliasing, directory accesses and
    regular expressions, which might lead to a bypass of
    security restrictions."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=378029"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=365520"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2006-1931"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2006-3964"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2006/dsa-1157"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the Ruby packages.

For the stable distribution (sarge) these problems have been fixed in
version 1.8.2-7sarge4."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ruby1.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/08/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/10/14");
  script_set_attribute(attribute:"vuln_publication_date", value:"2005/11/21");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2021 Tenable Network Security, Inc.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"3.1", prefix:"irb1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libdbm-ruby1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libgdbm-ruby1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libopenssl-ruby1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libreadline-ruby1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libruby1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libruby1.8-dbg", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libtcltk-ruby1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"rdoc1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"ri1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"ruby1.8", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"ruby1.8-dev", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"ruby1.8-elisp", reference:"1.8.2-7sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"ruby1.8-examples", reference:"1.8.2-7sarge4")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");