Mandriva Linux Security Advisory : openssl (MDVSA-2014:158)

2014-08-09T00:00:00
ID MANDRIVA_MDVSA-2014-158.NASL
Type nessus
Reporter Tenable
Modified 2015-09-01T00:00:00

Description

Multiple vulnerabilities has been discovered and corrected in openssl :

A flaw in OBJ_obj2txt may cause pretty printing functions such as X509_name_oneline, X509_name_print_ex et al. to leak some information from the stack. Applications may be affected if they echo pretty printing output to the attacker. OpenSSL SSL/TLS clients and servers themselves are not affected (CVE-2014-3508).

If a multithreaded client connects to a malicious server using a resumed session and the server sends an ec point format extension it could write up to 255 bytes to freed memory (CVE-2014-3509).

An attacker can force an error condition which causes openssl to crash whilst processing DTLS packets due to memory being freed twice. This can be exploited through a Denial of Service attack (CVE-2014-3505).

An attacker can force openssl to consume large amounts of memory whilst processing DTLS handshake messages. This can be exploited through a Denial of Service attack (CVE-2014-3506).

By sending carefully crafted DTLS packets an attacker could cause openssl to leak memory. This can be exploited through a Denial of Service attack (CVE-2014-3507).

OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject to a denial of service attack. A malicious server can crash the client with a NULL pointer dereference (read) by specifying an anonymous (EC)DH ciphersuite and sending carefully crafted handshake messages (CVE-2014-3510).

The updated packages have been upgraded to the 1.0.0n version where these security flaws has been fixed.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandriva Linux Security Advisory MDVSA-2014:158. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(77097);
  script_version("$Revision: 1.10 $");
  script_cvs_date("$Date: 2015/09/01 13:42:18 $");

  script_cve_id("CVE-2014-3505", "CVE-2014-3506", "CVE-2014-3507", "CVE-2014-3508", "CVE-2014-3509", "CVE-2014-3510");
  script_bugtraq_id(69075, 69076, 69078, 69081, 69082, 69084);
  script_xref(name:"MDVSA", value:"2014:158");

  script_name(english:"Mandriva Linux Security Advisory : openssl (MDVSA-2014:158)");
  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:
"Multiple vulnerabilities has been discovered and corrected in 
openssl :

A flaw in OBJ_obj2txt may cause pretty printing functions such as
X509_name_oneline, X509_name_print_ex et al. to leak some information
from the stack. Applications may be affected if they echo pretty
printing output to the attacker. OpenSSL SSL/TLS clients and servers
themselves are not affected (CVE-2014-3508).

If a multithreaded client connects to a malicious server using a
resumed session and the server sends an ec point format extension it
could write up to 255 bytes to freed memory (CVE-2014-3509).

An attacker can force an error condition which causes openssl to crash
whilst processing DTLS packets due to memory being freed twice. This
can be exploited through a Denial of Service attack (CVE-2014-3505).

An attacker can force openssl to consume large amounts of memory
whilst processing DTLS handshake messages. This can be exploited
through a Denial of Service attack (CVE-2014-3506).

By sending carefully crafted DTLS packets an attacker could cause
openssl to leak memory. This can be exploited through a Denial of
Service attack (CVE-2014-3507).

OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are
subject to a denial of service attack. A malicious server can crash
the client with a NULL pointer dereference (read) by specifying an
anonymous (EC)DH ciphersuite and sending carefully crafted handshake
messages (CVE-2014-3510).

The updated packages have been upgraded to the 1.0.0n version where
these security flaws has been fixed."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.openssl.org/news/secadv/20140806.txt"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:ND/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:lib64openssl-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64openssl-engines1.0.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64openssl-static-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64openssl1.0.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:openssl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:business_server:1");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/08/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/08/09");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2015 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:"lib64openssl-devel-1.0.0n-1.mbs1")) flag++;
if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"lib64openssl-engines1.0.0-1.0.0n-1.mbs1")) flag++;
if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"lib64openssl-static-devel-1.0.0n-1.mbs1")) flag++;
if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"lib64openssl1.0.0-1.0.0n-1.mbs1")) flag++;
if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"openssl-1.0.0n-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");