Updated ruby packages that fix several security issues are now available for Red Hat Enterprise Linux 4 and 5.
This update has been rated as having moderate security impact by the Red Hat Security Response Team.
Ruby is an interpreted scripting language for quick and easy object-oriented programming.
Multiple integer overflows leading to a heap overflow were discovered in the array- and string-handling code used by Ruby. An attacker could use these flaws to crash a Ruby application or, possibly, execute arbitrary code with the privileges of the Ruby application using untrusted inputs in array or string operations. (CVE-2008-2376, CVE-2008-2662, CVE-2008-2663, CVE-2008-2725, CVE-2008-2726)
It was discovered that Ruby used the alloca() memory allocation function in the format (%) method of the String class without properly restricting maximum string length. An attacker could use this flaw to crash a Ruby application or, possibly, execute arbitrary code with the privileges of the Ruby application using long, untrusted strings as format strings. (CVE-2008-2664)
Red Hat would like to thank Drew Yao of the Apple Product Security team for reporting these issues.
Users of Ruby should upgrade to these updated packages, which contain a backported patch to resolve 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-2008:0561 and
# CentOS Errata and Security Advisory 2008:0561 respectively.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(43694);
script_version("1.17");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2008-2376", "CVE-2008-2662", "CVE-2008-2663", "CVE-2008-2664", "CVE-2008-2725", "CVE-2008-2726");
script_bugtraq_id(29903, 30036);
script_xref(name:"RHSA", value:"2008:0561");
script_name(english:"CentOS 4 / 5 : ruby (CESA-2008:0561)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:"The remote CentOS host is missing one or more security updates."
);
script_set_attribute(
attribute:"description",
value:
"Updated ruby packages that fix several security issues are now
available for Red Hat Enterprise Linux 4 and 5.
This update has been rated as having moderate security impact by the
Red Hat Security Response Team.
Ruby is an interpreted scripting language for quick and easy
object-oriented programming.
Multiple integer overflows leading to a heap overflow were discovered
in the array- and string-handling code used by Ruby. An attacker could
use these flaws to crash a Ruby application or, possibly, execute
arbitrary code with the privileges of the Ruby application using
untrusted inputs in array or string operations. (CVE-2008-2376,
CVE-2008-2662, CVE-2008-2663, CVE-2008-2725, CVE-2008-2726)
It was discovered that Ruby used the alloca() memory allocation
function in the format (%) method of the String class without properly
restricting maximum string length. An attacker could use this flaw to
crash a Ruby application or, possibly, execute arbitrary code with the
privileges of the Ruby application using long, untrusted strings as
format strings. (CVE-2008-2664)
Red Hat would like to thank Drew Yao of the Apple Product Security
team for reporting these issues.
Users of Ruby should upgrade to these updated packages, which contain
a backported patch to resolve these issues."
);
# https://lists.centos.org/pipermail/centos-announce/2008-July/015111.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?21d2cfe8"
);
# https://lists.centos.org/pipermail/centos-announce/2008-July/015115.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?afd701a7"
);
# https://lists.centos.org/pipermail/centos-announce/2008-July/015117.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?56a92005"
);
# https://lists.centos.org/pipermail/centos-announce/2008-July/015121.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?e7cd80a0"
);
script_set_attribute(attribute:"solution", value:"Update the affected ruby packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/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_cwe_id(189, 399);
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:irb");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-docs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-irb");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-mode");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-rdoc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-ri");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-tcltk");
script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:4");
script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:5");
script_set_attribute(attribute:"vuln_publication_date", value:"2008/06/24");
script_set_attribute(attribute:"patch_publication_date", value:"2008/07/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2010/01/06");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2010-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"CentOS Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/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);
release = get_kb_item("Host/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^(4|5)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 4.x / 5.x", "CentOS " + os_ver);
if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);
flag = 0;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"irb-1.8.1-7.el4_6.1")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"x86_64", reference:"irb-1.8.1-7.el4_6.1")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"ruby-1.8.1-7.el4_6.1")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"x86_64", reference:"ruby-1.8.1-7.el4_6.1")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"ruby-devel-1.8.1-7.el4_6.1")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"x86_64", reference:"ruby-devel-1.8.1-7.el4_6.1")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"ruby-docs-1.8.1-7.el4_6.1")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"x86_64", reference:"ruby-docs-1.8.1-7.el4_6.1")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"ruby-libs-1.8.1-7.el4_6.1")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"x86_64", reference:"ruby-libs-1.8.1-7.el4_6.1")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"ruby-mode-1.8.1-7.el4_6.1")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"x86_64", reference:"ruby-mode-1.8.1-7.el4_6.1")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"ruby-tcltk-1.8.1-7.el4_6.1")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"x86_64", reference:"ruby-tcltk-1.8.1-7.el4_6.1")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-1.8.5-5.el5_2.3")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-devel-1.8.5-5.el5_2.3")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-docs-1.8.5-5.el5_2.3")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-irb-1.8.5-5.el5_2.3")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-libs-1.8.5-5.el5_2.3")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-mode-1.8.5-5.el5_2.3")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-rdoc-1.8.5-5.el5_2.3")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-ri-1.8.5-5.el5_2.3")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-tcltk-1.8.5-5.el5_2.3")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "irb / ruby / ruby-devel / ruby-docs / ruby-irb / ruby-libs / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
centos | centos | ruby-mode | p-cpe:/a:centos:centos:ruby-mode |
centos | centos | ruby-rdoc | p-cpe:/a:centos:centos:ruby-rdoc |
centos | centos | ruby-ri | p-cpe:/a:centos:centos:ruby-ri |
centos | centos | ruby-tcltk | p-cpe:/a:centos:centos:ruby-tcltk |
centos | centos | 4 | cpe:/o:centos:centos:4 |
centos | centos | 5 | cpe:/o:centos:centos:5 |
centos | centos | irb | p-cpe:/a:centos:centos:irb |
centos | centos | ruby | p-cpe:/a:centos:centos:ruby |
centos | centos | ruby-devel | p-cpe:/a:centos:centos:ruby-devel |
centos | centos | ruby-docs | p-cpe:/a:centos:centos:ruby-docs |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2376
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2662
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2663
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2664
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2725
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2726
www.nessus.org/u?21d2cfe8
www.nessus.org/u?56a92005
www.nessus.org/u?afd701a7
www.nessus.org/u?e7cd80a0