Oracle Linux 5 : postgresql84 (ELSA-2011-1378)

2013-07-12T00:00:00
ID ORACLELINUX_ELSA-2011-1378.NASL
Type nessus
Reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-02-02T00:00:00

Description

From Red Hat Security Advisory 2011:1378 :

Updated postgresql84 packages that fix one security issue are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

PostgreSQL is an advanced object-relational database management system (DBMS).

A signedness issue was found in the way the crypt() function in the PostgreSQL pgcrypto module handled 8-bit characters in passwords when using Blowfish hashing. Up to three characters immediately preceding a non-ASCII character (one with the high bit set) had no effect on the hash result, thus shortening the effective password length. This made brute-force guessing more efficient as several different passwords were hashed to the same value. (CVE-2011-2483)

Note: Due to the CVE-2011-2483 fix, after installing this update some users may not be able to log in to applications that store user passwords, hashed with Blowfish using the PostgreSQL crypt() function, in a back-end PostgreSQL database. Unsafe processing can be re-enabled for specific passwords (allowing affected users to log in) by changing their hash prefix to

                                        
                                            #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2011:1378 and 
# Oracle Linux Security Advisory ELSA-2011-1378 respectively.
#

include("compat.inc");

if (description)
{
  script_id(68371);
  script_version("1.8");
  script_cvs_date("Date: 2019/10/25 13:36:09");

  script_cve_id("CVE-2011-2483");
  script_bugtraq_id(49241);
  script_xref(name:"RHSA", value:"2011:1378");

  script_name(english:"Oracle Linux 5 : postgresql84 (ELSA-2011-1378)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2011:1378 :

Updated postgresql84 packages that fix one security issue are now
available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having
moderate security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from
the CVE link in the References section.

PostgreSQL is an advanced object-relational database management system
(DBMS).

A signedness issue was found in the way the crypt() function in the
PostgreSQL pgcrypto module handled 8-bit characters in passwords when
using Blowfish hashing. Up to three characters immediately preceding a
non-ASCII character (one with the high bit set) had no effect on the
hash result, thus shortening the effective password length. This made
brute-force guessing more efficient as several different passwords
were hashed to the same value. (CVE-2011-2483)

Note: Due to the CVE-2011-2483 fix, after installing this update some
users may not be able to log in to applications that store user
passwords, hashed with Blowfish using the PostgreSQL crypt() function,
in a back-end PostgreSQL database. Unsafe processing can be re-enabled
for specific passwords (allowing affected users to log in) by changing
their hash prefix to '$2x$'.

These updated postgresql84 packages upgrade PostgreSQL to version
8.4.9. Refer to the PostgreSQL Release Notes for a full list of
changes :

http://www.postgresql.org/docs/8.4/static/release.html

All PostgreSQL users are advised to upgrade to these updated packages,
which correct this issue. If the postgresql service is running, it
will be automatically restarted after installing this update."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2011-October/002408.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected postgresql84 packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  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:oracle:linux:postgresql84");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:postgresql84-contrib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:postgresql84-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:postgresql84-docs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:postgresql84-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:postgresql84-plperl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:postgresql84-plpython");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:postgresql84-pltcl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:postgresql84-python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:postgresql84-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:postgresql84-tcl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:postgresql84-test");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/08/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/10/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

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

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 5", "Oracle Linux " + 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 && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);

flag = 0;
if (rpm_check(release:"EL5", reference:"postgresql84-8.4.9-1.el5_7.1")) flag++;
if (rpm_check(release:"EL5", reference:"postgresql84-contrib-8.4.9-1.el5_7.1")) flag++;
if (rpm_check(release:"EL5", reference:"postgresql84-devel-8.4.9-1.el5_7.1")) flag++;
if (rpm_check(release:"EL5", reference:"postgresql84-docs-8.4.9-1.el5_7.1")) flag++;
if (rpm_check(release:"EL5", reference:"postgresql84-libs-8.4.9-1.el5_7.1")) flag++;
if (rpm_check(release:"EL5", reference:"postgresql84-plperl-8.4.9-1.el5_7.1")) flag++;
if (rpm_check(release:"EL5", reference:"postgresql84-plpython-8.4.9-1.el5_7.1")) flag++;
if (rpm_check(release:"EL5", reference:"postgresql84-pltcl-8.4.9-1.el5_7.1")) flag++;
if (rpm_check(release:"EL5", reference:"postgresql84-python-8.4.9-1.el5_7.1")) flag++;
if (rpm_check(release:"EL5", reference:"postgresql84-server-8.4.9-1.el5_7.1")) flag++;
if (rpm_check(release:"EL5", reference:"postgresql84-tcl-8.4.9-1.el5_7.1")) flag++;
if (rpm_check(release:"EL5", reference:"postgresql84-test-8.4.9-1.el5_7.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "postgresql84 / postgresql84-contrib / postgresql84-devel / etc");
}