An update for quagga is now available for Red Hat Enterprise Linux 6.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
The quagga packages contain Quagga, the free network-routing software suite that manages TCP/IP based protocols. Quagga supports the BGP4, BGP4+, OSPFv2, OSPFv3, RIPv1, RIPv2, and RIPng protocols, and is intended to be used as a Route Server and Route Reflector.
Security Fix(es) :
A stack-based buffer overflow flaw was found in the way Quagga handled IPv6 router advertisement messages. A remote attacker could use this flaw to crash the zebra daemon resulting in denial of service. (CVE-2016-1245)
A stack-based buffer overflow flaw was found in the way the Quagga BGP routing daemon (bgpd) handled Labeled-VPN SAFI routes data. A remote attacker could use this flaw to crash the bgpd daemon resulting in denial of service. (CVE-2016-2342)
A denial of service flaw was found in the Quagga BGP routing daemon (bgpd). Under certain circumstances, a remote attacker could send a crafted packet to crash the bgpd daemon resulting in denial of service. (CVE-2016-4049)
A denial of service flaw affecting various daemons in Quagga was found. A remote attacker could use this flaw to cause the various Quagga daemons, which expose their telnet interface, to crash.
(CVE-2017-5495)
A stack-based buffer overflow flaw was found in the way the Quagga OSPFD daemon handled LSA (link-state advertisement) packets. A remote attacker could use this flaw to crash the ospfd daemon resulting in denial of service. (CVE-2013-2236)
Additional Changes :
For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.9 Release Notes and Red Hat Enterprise Linux 6.9 Technical Notes linked from the References section.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2017:0794. The text
# itself is copyright (C) Red Hat, Inc.
#
include("compat.inc");
if (description)
{
script_id(97885);
script_version("3.8");
script_cvs_date("Date: 2019/10/24 15:35:42");
script_cve_id("CVE-2013-2236", "CVE-2016-1245", "CVE-2016-2342", "CVE-2016-4049", "CVE-2017-5495");
script_xref(name:"RHSA", value:"2017:0794");
script_name(english:"RHEL 6 : quagga (RHSA-2017:0794)");
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:
"An update for quagga is now available for Red Hat Enterprise Linux 6.
Red Hat Product Security has rated this update as having a security
impact of Moderate. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.
The quagga packages contain Quagga, the free network-routing software
suite that manages TCP/IP based protocols. Quagga supports the BGP4,
BGP4+, OSPFv2, OSPFv3, RIPv1, RIPv2, and RIPng protocols, and is
intended to be used as a Route Server and Route Reflector.
Security Fix(es) :
* A stack-based buffer overflow flaw was found in the way Quagga
handled IPv6 router advertisement messages. A remote attacker could
use this flaw to crash the zebra daemon resulting in denial of
service. (CVE-2016-1245)
* A stack-based buffer overflow flaw was found in the way the Quagga
BGP routing daemon (bgpd) handled Labeled-VPN SAFI routes data. A
remote attacker could use this flaw to crash the bgpd daemon resulting
in denial of service. (CVE-2016-2342)
* A denial of service flaw was found in the Quagga BGP routing daemon
(bgpd). Under certain circumstances, a remote attacker could send a
crafted packet to crash the bgpd daemon resulting in denial of
service. (CVE-2016-4049)
* A denial of service flaw affecting various daemons in Quagga was
found. A remote attacker could use this flaw to cause the various
Quagga daemons, which expose their telnet interface, to crash.
(CVE-2017-5495)
* A stack-based buffer overflow flaw was found in the way the Quagga
OSPFD daemon handled LSA (link-state advertisement) packets. A remote
attacker could use this flaw to crash the ospfd daemon resulting in
denial of service. (CVE-2013-2236)
Additional Changes :
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 6.9 Release Notes and Red Hat Enterprise Linux 6.9
Technical Notes linked from the References section."
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/errata/RHSA-2017:0794"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2013-2236"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2016-1245"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2016-2342"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2016-4049"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2017-5495"
);
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:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:redhat:enterprise_linux:quagga");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:quagga-contrib");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:quagga-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:quagga-devel");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
script_set_attribute(attribute:"vuln_publication_date", value:"2013/10/23");
script_set_attribute(attribute:"patch_publication_date", value:"2017/03/21");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/03/22");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2019 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:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.x", "Red Hat " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "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-2017:0794";
yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
if (!empty_or_null(yum_report))
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
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:"RHEL6", cpu:"i686", reference:"quagga-0.99.15-14.el6")) flag++;
if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"quagga-0.99.15-14.el6")) flag++;
if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"quagga-0.99.15-14.el6")) flag++;
if (rpm_check(release:"RHEL6", cpu:"i686", reference:"quagga-contrib-0.99.15-14.el6")) flag++;
if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"quagga-contrib-0.99.15-14.el6")) flag++;
if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"quagga-contrib-0.99.15-14.el6")) flag++;
if (rpm_check(release:"RHEL6", reference:"quagga-debuginfo-0.99.15-14.el6")) flag++;
if (rpm_check(release:"RHEL6", reference:"quagga-devel-0.99.15-14.el6")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
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, "quagga / quagga-contrib / quagga-debuginfo / quagga-devel");
}
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2236
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1245
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2342
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4049
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5495
access.redhat.com/errata/RHSA-2017:0794
access.redhat.com/security/cve/cve-2013-2236
access.redhat.com/security/cve/cve-2016-1245
access.redhat.com/security/cve/cve-2016-2342
access.redhat.com/security/cve/cve-2016-4049
access.redhat.com/security/cve/cve-2017-5495