RHEL 2.1 : openssl (RHSA-2002:161)

2004-07-06T00:00:00
ID REDHAT-RHSA-2002-161.NASL
Type nessus
Reporter This script is Copyright (C) 2004-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2021-01-14T00:00:00

Description

Updated OpenSSL packages are available for Red Hat Linux Advanced Server. These updates fix multiple protocol parsing bugs, which may cause a denial of service (DoS) attack or cause SSL-enabled applications to crash.

[Updated 06 Jan 2003] Added fixed packages for the ia64 architecture.

[Updated 06 Feb 2003] Added fixed packages for Advanced Workstation 2.1

OpenSSL is a commercial-grade, full-featured, and open source toolkit which implements the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library.

Portions of the SSL protocol data stream, which include the lengths of structures which are being transferred, may not be properly validated. This may allow a malicious server or client to cause an affected application to crash or enter an infinite loop, which can be used as a denial of service (DoS) attack if the application is a server. It has not been verified if this issue could lead to further consequences such as remote code execution.

These errata packages contain a patch to correct this vulnerability. Please note that the original patch from the OpenSSL team had a mistake in it which could possibly still allow buffer overflows to occur. This bug is also fixed in these errata packages.

NOTE :

Please read the Solution section below as it contains instructions for making sure that all SSL-enabled processes are restarted after the update is applied.

Thanks go to the OpenSSL team for providing patches for these issues.

                                        
                                            #%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2002:161. The text 
# itself is copyright (C) Red Hat, Inc.
#

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

if (description)
{
  script_id(12316);
  script_version("1.26");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2002-0659");
  script_xref(name:"RHSA", value:"2002:161");

  script_name(english:"RHEL 2.1 : openssl (RHSA-2002:161)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated OpenSSL packages are available for Red Hat Linux Advanced
Server. These updates fix multiple protocol parsing bugs, which may
cause a denial of service (DoS) attack or cause SSL-enabled
applications to crash.

[Updated 06 Jan 2003] Added fixed packages for the ia64 architecture.

[Updated 06 Feb 2003] Added fixed packages for Advanced Workstation
2.1

OpenSSL is a commercial-grade, full-featured, and open source toolkit
which implements the Secure Sockets Layer (SSL v2/v3) and Transport
Layer Security (TLS v1) protocols as well as a full-strength general
purpose cryptography library.

Portions of the SSL protocol data stream, which include the lengths of
structures which are being transferred, may not be properly validated.
This may allow a malicious server or client to cause an affected
application to crash or enter an infinite loop, which can be used as a
denial of service (DoS) attack if the application is a server. It has
not been verified if this issue could lead to further consequences
such as remote code execution.

These errata packages contain a patch to correct this vulnerability.
Please note that the original patch from the OpenSSL team had a
mistake in it which could possibly still allow buffer overflows to
occur. This bug is also fixed in these errata packages.

NOTE :

Please read the Solution section below as it contains instructions for
making sure that all SSL-enabled processes are restarted after the
update is applied.

Thanks go to the OpenSSL team for providing patches for these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2002-0659"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2002:161"
  );
  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_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-perl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl095a");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl096");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:2.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2002/08/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2003/02/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/07/06");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^2\.1([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 2.1", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) 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$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2002:161";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"openssl-0.9.6b-28")) flag++;
  if (rpm_check(release:"RHEL2.1", cpu:"i686", reference:"openssl-0.9.6b-28")) flag++;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"openssl-devel-0.9.6b-28")) flag++;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"openssl-perl-0.9.6b-28")) flag++;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"openssl095a-0.9.5a-18")) flag++;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"openssl096-0.9.6-13")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "openssl / openssl-devel / openssl-perl / openssl095a / openssl096");
  }
}