Updated bzr packages fix security vulnerabilities :
A denial of service flaw was found in the way SSL module implementation of Python 3 performed matching of the certificate’s name in the case it contained many ‘’ wildcard characters. A remote attacker, able to obtain valid certificate with its name containing a lot of '’ wildcard characters could use this flaw to cause denial of service (excessive CPU consumption) by issuing request to validate such a certificate for / to an application using the Python’s ssl.match_hostname() functionality (CVE-2013-2099).
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Mandriva Linux Security Advisory MDVSA-2013:229.
# The text itself is copyright (C) Mandriva S.A.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(69842);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2013-2099");
script_bugtraq_id(59877);
script_xref(name:"MDVSA", value:"2013:229");
script_name(english:"Mandriva Linux Security Advisory : bzr (MDVSA-2013:229)");
script_summary(english:"Checks rpm output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Mandriva Linux host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"Updated bzr packages fix security vulnerabilities :
A denial of service flaw was found in the way SSL module
implementation of Python 3 performed matching of the certificate's
name in the case it contained many '*' wildcard characters. A remote
attacker, able to obtain valid certificate with its name containing a
lot of '*' wildcard characters could use this flaw to cause denial of
service (excessive CPU consumption) by issuing request to validate
such a certificate for / to an application using the Python's
ssl.match_hostname() functionality (CVE-2013-2099)."
);
script_set_attribute(
attribute:"see_also",
value:"http://advisories.mageia.org/MGASA-2013-0252.html"
);
script_set_attribute(attribute:"solution", value:"Update the affected bzr package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
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:mandriva:linux:bzr");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:business_server:1");
script_set_attribute(attribute:"patch_publication_date", value:"2013/09/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2013/09/11");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2013-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Mandriva Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/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/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);
flag = 0;
if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"bzr-2.5.1-4.1.mbs1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");