GLSA-200610-11 : OpenSSL: Multiple vulnerabilities

2006-10-25T00:00:00
ID GENTOO_GLSA-200610-11.NASL
Type nessus
Reporter This script is Copyright (C) 2006-2019 Tenable Network Security, Inc.
Modified 2020-05-02T00:00:00

Description

The remote host is affected by the vulnerability described in GLSA-200610-11 (OpenSSL: Multiple vulnerabilities)

Tavis Ormandy and Will Drewry, both of the Google Security Team,
discovered that the SSL_get_shared_ciphers() function contains a buffer
overflow vulnerability, and that the SSLv2 client code contains a flaw
leading to a crash. Additionally Dr. Stephen N. Henson found that the
ASN.1 handler contains two Denial of Service vulnerabilities: while
parsing an invalid ASN.1 structure and while handling certain types of
public key.

Impact :

An attacker could trigger the buffer overflow vulnerability by sending
a malicious suite of ciphers to an application using the vulnerable
function, and thus execute arbitrary code with the rights of the user
running the application. An attacker could also consume CPU and/or
memory by exploiting the Denial of Service vulnerabilities. Finally a
malicious server could crash a SSLv2 client through the SSLv2
vulnerability.

Workaround :

There is no known workaround at this time.

                                        
                                            #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200610-11.
#
# The advisory text is Copyright (C) 2001-2016 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(22914);
  script_version("1.14");
  script_cvs_date("Date: 2019/08/02 13:32:43");

  script_cve_id("CVE-2006-2937", "CVE-2006-2940", "CVE-2006-3738", "CVE-2006-4343");
  script_xref(name:"GLSA", value:"200610-11");

  script_name(english:"GLSA-200610-11 : OpenSSL: Multiple vulnerabilities");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-200610-11
(OpenSSL: Multiple vulnerabilities)

    Tavis Ormandy and Will Drewry, both of the Google Security Team,
    discovered that the SSL_get_shared_ciphers() function contains a buffer
    overflow vulnerability, and that the SSLv2 client code contains a flaw
    leading to a crash. Additionally Dr. Stephen N. Henson found that the
    ASN.1 handler contains two Denial of Service vulnerabilities: while
    parsing an invalid ASN.1 structure and while handling certain types of
    public key.
  
Impact :

    An attacker could trigger the buffer overflow vulnerability by sending
    a malicious suite of ciphers to an application using the vulnerable
    function, and thus execute arbitrary code with the rights of the user
    running the application. An attacker could also consume CPU and/or
    memory by exploiting the Denial of Service vulnerabilities. Finally a
    malicious server could crash a SSLv2 client through the SSLv2
    vulnerability.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200610-11"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All OpenSSL 0.9.8 users should upgrade to the latest version:
    # emerge --sync
    # emerge --ask --oneshot --verbose '>=dev-libs/openssl-0.9.8d'
    All OpenSSL 0.9.7 users should upgrade to the latest version:
    # emerge --sync
    # emerge --ask --oneshot --verbose '>=dev-libs/openssl-0.9.7l'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_cwe_id(119, 399);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:openssl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/10/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/10/25");
  script_set_attribute(attribute:"vuln_publication_date", value:"2006/09/28");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2019 Tenable Network Security, Inc.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"dev-libs/openssl", unaffected:make_list("ge 0.9.8d", "rge 0.9.7l"), vulnerable:make_list("lt 0.9.8d"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "OpenSSL");
}