Ubuntu 4.10 / 5.04 : squid vulnerabilities (USN-183-1)

2006-01-15T00:00:00
ID UBUNTU_USN-183-1.NASL
Type nessus
Reporter Ubuntu Security Notice (C) 2005-2019 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.
Modified 2020-01-02T00:00:00

Description

A Denial of Service vulnerability was discovered in the handling of aborted requests. A remote attacker could exploit this to crash Squid by sending specially crafted requests. (CAN-2005-2794)

Alex Masterov discovered a Denial of Service vulnerability in the sslConnectTimeout() function. By sending specially crafted SSL requests, a remote attacker could exploit this to crash Squid. (CAN-2005-2796).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

                                        
                                            #%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-183-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(20594);
  script_version("1.16");
  script_cvs_date("Date: 2019/08/02 13:33:00");

  script_cve_id("CVE-2005-2794", "CVE-2005-2796");
  script_xref(name:"USN", value:"183-1");

  script_name(english:"Ubuntu 4.10 / 5.04 : squid vulnerabilities (USN-183-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A Denial of Service vulnerability was discovered in the handling of
aborted requests. A remote attacker could exploit this to crash Squid
by sending specially crafted requests. (CAN-2005-2794)

Alex Masterov discovered a Denial of Service vulnerability in the
sslConnectTimeout() function. By sending specially crafted SSL
requests, a remote attacker could exploit this to crash Squid.
(CAN-2005-2796).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:squid");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:squid-cgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:squid-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:squidclient");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:4.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:5.04");

  script_set_attribute(attribute:"patch_publication_date", value:"2005/09/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/01/15");
  script_set_attribute(attribute:"vuln_publication_date", value:"2005/09/01");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2005-2019 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.");
  script_family(english:"Ubuntu Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! ereg(pattern:"^(4\.10|5\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 4.10 / 5.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"4.10", pkgname:"squid", pkgver:"2.5.5-6ubuntu0.10")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"squid-cgi", pkgver:"2.5.5-6ubuntu0.10")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"squid-common", pkgver:"2.5.5-6ubuntu0.10")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"squidclient", pkgver:"2.5.5-6ubuntu0.10")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"squid", pkgver:"2.5.8-3ubuntu1.3")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"squid-cgi", pkgver:"2.5.8-3ubuntu1.3")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"squid-common", pkgver:"2.5.8-3ubuntu1.3")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"squidclient", pkgver:"2.5.8-3ubuntu1.3")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "squid / squid-cgi / squid-common / squidclient");
}