Vulnerabilities > CVE-2011-1147 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Digium Asterisk

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2225. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(53558);
  script_version("1.14");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2011-1147", "CVE-2011-1174", "CVE-2011-1175", "CVE-2011-1507", "CVE-2011-1599");
  script_bugtraq_id(46474, 46897, 46898, 47537);
  script_xref(name:"DSA", value:"2225");

  script_name(english:"Debian DSA-2225-1 : asterisk - 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 Asterisk, an Open
Source PBX and telephony toolkit.

  - CVE-2011-1147
    Matthew Nicholson discovered that incorrect handling of
    UDPTL packets may lead to denial of service or the
    execution of arbitrary code.

  - CVE-2011-1174
    Blake Cornell discovered that incorrect connection
    handling in the manager interface may lead to denial of
    service.

  - CVE-2011-1175
    Blake Cornell and Chris May discovered that incorrect
    TCP connection handling may lead to denial of service.

  - CVE-2011-1507
    Tzafrir Cohen discovered that insufficient limitation of
    connection requests in several TCP based services may
    lead to denial of service. Please see AST-2011-005 for
    details.

  - CVE-2011-1599
    Matthew Nicholson discovered a privilege escalation
    vulnerability in the manager interface."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2011-1147"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2011-1174"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2011-1175"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2011-1507"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://downloads.asterisk.org/pub/security/AST-2011-005.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2011-1599"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/asterisk"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2011/dsa-2225"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the asterisk packages.

For the oldstable distribution (lenny), this problem has been fixed in
version 1:1.4.21.2~dfsg-3+lenny2.1.

For the stable distribution (squeeze), this problem has been fixed in
version 1:1.6.2.9-2+squeeze2."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/04/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/04/27");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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:"5.0", prefix:"asterisk", reference:"1:1.4.21.2~dfsg-3+lenny2.1")) flag++;
if (deb_check(release:"6.0", prefix:"asterisk", reference:"1:1.6.2.9-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"asterisk-config", reference:"1:1.6.2.9-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"asterisk-dbg", reference:"1:1.6.2.9-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"asterisk-dev", reference:"1:1.6.2.9-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"asterisk-doc", reference:"1:1.6.2.9-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"asterisk-h323", reference:"1:1.6.2.9-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"asterisk-sounds-main", reference:"1:1.6.2.9-2+squeeze2")) flag++;

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