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nessusThis script is Copyright (C) 2015-2021 Tenable Network Security, Inc.MANDRIVA_MDVSA-2015-232.NASL
HistoryMay 11, 2015 - 12:00 a.m.

Mandriva Linux Security Advisory : libtasn1 (MDVSA-2015:232)

2015-05-1100:00:00
This script is Copyright (C) 2015-2021 Tenable Network Security, Inc.
www.tenable.com
10

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

0.924

Percentile

99.0%

Updated libtasn1 packages fix security vulnerability :

A malformed certificate input could cause a heap overflow read in the DER decoding functions of Libtasn1. The heap overflow happens in the function _asn1_extract_der_octet() (CVE-2015-3622).

#%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-2015:232. 
# The text itself is copyright (C) Mandriva S.A.
#

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

if (description)
{
  script_id(83329);
  script_version("2.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2015-3622");
  script_xref(name:"MDVSA", value:"2015:232");

  script_name(english:"Mandriva Linux Security Advisory : libtasn1 (MDVSA-2015:232)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Mandriva Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated libtasn1 packages fix security vulnerability :

A malformed certificate input could cause a heap overflow read in the
DER decoding functions of Libtasn1. The heap overflow happens in the
function _asn1_extract_der_octet() (CVE-2015-3622)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://advisories.mageia.org/MGASA-2015-0200.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Update the affected lib64tasn1-devel, lib64tasn1_6 and / or
libtasn1-tools packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64tasn1-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64tasn1_6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libtasn1-tools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:business_server:1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:business_server:2");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/05/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/05/11");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2021 Tenable Network Security, Inc.");
  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:"lib64tasn1-devel-3.6-1.5.mbs1")) flag++;
if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"lib64tasn1_6-3.6-1.5.mbs1")) flag++;
if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"libtasn1-tools-3.6-1.5.mbs1")) flag++;

if (rpm_check(release:"MDK-MBS2", cpu:"x86_64", reference:"lib64tasn1-devel-3.6-1.2.mbs2")) flag++;
if (rpm_check(release:"MDK-MBS2", cpu:"x86_64", reference:"lib64tasn1_6-3.6-1.2.mbs2")) flag++;
if (rpm_check(release:"MDK-MBS2", cpu:"x86_64", reference:"libtasn1-tools-3.6-1.2.mbs2")) 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");
VendorProductVersionCPE
mandrivalinuxlib64tasn1-develp-cpe:/a:mandriva:linux:lib64tasn1-devel
mandrivalinuxlib64tasn1_6p-cpe:/a:mandriva:linux:lib64tasn1_6
mandrivalinuxlibtasn1-toolsp-cpe:/a:mandriva:linux:libtasn1-tools
mandrivabusiness_server1cpe:/o:mandriva:business_server:1
mandrivabusiness_server2cpe:/o:mandriva:business_server:2

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

0.924

Percentile

99.0%