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aixCentOS ProjectOPENSSL_ADVISORY13.ASC
HistoryApr 13, 2015 - 5:07 a.m.

Multiple Security vulnerabilities in AIX OpenSSL

2015-04-1305:07:43
CentOS Project
aix.software.ibm.com
73

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

EPSS

0.944

Percentile

99.2%

IBM SECURITY ADVISORY

First Issued: <Mon Apr 13 05:07:43 CDT 2015>

The most recent version of this document is available here:

http://aix.software.ibm.com/aix/efixes/security/openssl_advisory13.asc
https://aix.software.ibm.com/aix/efixes/security/openssl_advisory13.asc
ftp://aix.software.ibm.com/aix/efixes/security/openssl_advisory13.asc

                       VULNERABILITY SUMMARY
  1. VULNERABILITY: AIX OpenSSL Denial of Service (memory corruption
    and application crash) via a malformed Elliptic Curve (EC)
    private-key file that is improperly handled during import

    PLATFORMS: AIX 5.3, 6.1 and 7.1
    VIOS 2.2.*

    SOLUTION: Apply the fix as described below.

    THREAT: See below

    CVE Numbers: CVE-2015-0209

    Reboot required? NO
    Workarounds? NO
    Protected by FPM? NO
    Protected by SED? NO

2.VULNERABILITY: AIX OpenSSL Denial of Service (invalid read operation
and application crash) via a crafted X.509 certificate to an
endpoint that uses the certificate-verification feature

PLATFORMS:          AIX 5.3, 6.1 and 7.1
                    VIOS 2.2.*

SOLUTION:           Apply the fix as described below.

THREAT:             See below

CVE Numbers:        CVE-2015-0286

Reboot required?    NO
Workarounds?        NO
Protected by FPM?   NO
Protected by SED?   NO
  1. VULNERABILITY: AIX OpenSSL Denial of Service (invalid write operation
    and memory corruption) by leveraging an application that
    relies on ASN.1 structure reuse

    PLATFORMS: AIX 5.3, 6.1 and 7.1
    VIOS 2.2.*

    SOLUTION: Apply the fix as described below.

    THREAT: See below

    CVE Numbers: CVE-2015-0287

    Reboot required? NO
    Workarounds? NO
    Protected by FPM? NO
    Protected by SED? NO

  2. VULNERABILITY: AIX OpenSSL Denial of Service (NULL pointer dereference
    and application crash) via an invalid certificate key

    PLATFORMS: AIX 5.3, 6.1 and 7.1
    VIOS 2.2.*

    SOLUTION: Apply the fix as described below.

    THREAT: See below

    CVE Numbers: CVE-2015-0288

    Reboot required? NO
    Workarounds? NO
    Protected by FPM? NO
    Protected by SED? NO

  3. VULNERABILITY: AIX OpenSSL Denial of Service (NULL pointer dereference
    and application crash) by leveraging an application that
    processes arbitrary PKCS#7 data and providing malformed
    data with ASN.1 encoding

    PLATFORMS: AIX 5.3, 6.1 and 7.1
    VIOS 2.2.*

    SOLUTION: Apply the fix as described below.

    THREAT: See below

    CVE Numbers: CVE-2015-0289

    Reboot required? NO
    Workarounds? NO
    Protected by FPM? NO
    Protected by SED? NO

  4. VULNERABILITY: AIX OpenSSL Denial of Service (memory corruption) via
    crafted base64 data that triggers a buffer overflow

    PLATFORMS: AIX 5.3, 6.1 and 7.1
    VIOS 2.2.*

    SOLUTION: Apply the fix as described below.

    THREAT: See below

    CVE Numbers: CVE-2015-0292

    Reboot required? NO
    Workarounds? NO
    Protected by FPM? NO
    Protected by SED? NO

  5. VULNERABILITY: AIX OpenSSL Denial of Service (assertion failure
    and daemon exit) via crafted CLIENT-MASTER-KEY message.

    PLATFORMS: AIX 5.3, 6.1 and 7.1
    VIOS 2.2.*

    SOLUTION: Apply the fix as described below.

    THREAT: See below

    CVE Numbers: CVE-2015-0293

    Reboot required? NO
    Workarounds? NO
    Protected by FPM? NO
    Protected by SED? NO

===============================================================================
DETAILED INFORMATION

I. DESCRIPTION

1. CVE-2015-0209
	OpenSSL could allow remote attackers to cause a denial of service
(memory corruption and application crash) via a malformed Elliptic Curve 
(EC) private-key file that is improperly handled during import

2. CVE-2015-0286
OpenSSL could allow remote attackers to cause a denial of service 
(invalid read operation and application crash) via a crafted X.509 
certificate to an endpoint that uses the certificate-verification feature

3. CVE-2015-0287
    OpenSSL could allow remote attackers can cause a Denial of Service 
(invalid write operation and memory corruption) by leveraging an application 
that relies on ASN.1 structure reuse

4. CVE-2015-0288
    OpenSSL could allow remote attackers to cause a Denial of Service 
(NULL pointer dereference and application crash) via an invalid 
certificate key

5. CVE-2015-0289
    OpenSSL could allows remote attackers to cause a Denial of Service 
(NULL pointer dereference and application crash) by leveraging 
an application that processes arbitrary PKCS#7 data and providing 
malformed data with ASN.1 encoding

6. CVE-2015-0292
    OpenSSL could allow remote attackers to cause a Denial of Service 
(memory corruption) via crafted base64 data that triggers a buffer overflow.

7. CVE-2015-0293
OpenSSL could allow remote attackers to cause a Denial of Service 
(assertion failure and daemon exit) via crafted CLIENT-MASTER-KEY message.

II. CVSS

1. CVE-2015-0209
CVSS Base Score: 7.5
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/101674
CVSS Environmental Score*: Undefined
CVSS Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

2. CVE-2015-0286
CVSS Base Score: 5
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/101666
CVSS Environmental Score*: Undefined
CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

3. CVE-2015-0287
CVSS Base Score: 7.5
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/101668
CVSS Environmental Score*: Undefined
CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

4. CVE-2015-0288
CVSS Base Score: 5
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/101675
CVSS Environmental Score*: Undefined
CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

5. CVE-2015-0289
CVSS Base Score: 5
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/101669
CVSS Environmental Score*: Undefined
CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

6. CVE-2015-0292
CVSS Base Score: 7.5
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/101670
CVSS Environmental Score*: Undefined
CVSS Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

7. CVE-2015-0293
CVSS Base Score: 5
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/101671
CVSS Environmental Score*: Undefined
CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

III. PLATFORM VULNERABILITY ASSESSMENT

    To determine if your system is vulnerable, execute the following
    command:

    lslpp -L openssl.base

    The following fileset levels are vulnerable:

    AIX Fileset      Lower Level  Upper Level   
    ------------------------------------------
    openssl.base     1.0.1.500     1.0.1.513
    openssl.base     0.9.8.401     0.9.8.2504
    openssl.base    12.9.8.1100   12.9.8.2504

Note, 0.9.8.401 and 12.9.8.1100 are the Lowest OpenSSL version
available in aix web download site. Even OpenSSL versions below 
this are impacted

IV. SOLUTIONS

A. FIXES

    Fix is available.  The fix can be downloaded via ftp
    from:

    ftp://aix.software.ibm.com/aix/efixes/security/openssl_fix13.tar

    The link above is to a tar file containing this signed
    advisory, fix packages, and OpenSSL signatures for each package.
    The fixes below include prerequisite checking. This will
    enforce the correct mapping between the fixes and AIX
    releases.

Note that the tar file contains Interim fixes that are based on OpenSSL version
    as given below - 

    Note: You must be on the 'prereq for installation' level before applying the interim fix.  
    This may require installing a new level(prereq version) first.


    AIX Level      Interim Fix (*.Z)            Fileset Name(prereq for installation)
    ---------------------------------------------------------------------------------
    5.3, 6.1, 7.1   IV71446m9a.150410.epkg.Z    openssl.base(1.0.1.513 version)
    5.3, 6.1, 7.1   IV71446m9b.150410.epkg.Z    openssl.base(0.9.8.2504 version)
    5.3, 6.1, 7.1   IV71446m9c.150410.epkg.Z    openssl.base(12.9.8.2504 version)

    VIOS Level     Interim Fix (*.Z)	     Fileset Name(prereq for installation)
    -------------------------------------------------------------------------------------
    2.2.*          IV71446m9a.150410.epkg.Z	     openssl.base(1.0.1.513 version)
    2.2.*          IV71446m9b.150410.epkg.Z      openssl.base(0.9.8.2504 version)
    2.2.*          IV71446m9c.150410.epkg.Z	     openssl.base(12.9.8.2504 version)


    To extract the fix from the tar file:

    tar xvf openssl_fix13.tar
    cd openssl_fix13

    Verify you have retrieved the fix intact:

    The checksums below were generated using the
    "openssl dgst -sha256 file" command is the followng:

    openssl dgst -sha256         						filename	 
    ----------------------------------------------------------------------------------------------
	8bd6837dbc983fc289f1db3e113aa875b204535ef1bbd998d84428b3cb33354b        IV71446m9a.150410.epkg.Z
	92868377fbb69ec1800fdbc6d58e6859f09b0fa630cfd011dabe53ba2615fdae        IV71446m9b.150410.epkg.Z
	de204552f8a168e7288d37372939e7b1f397d0610e83bde31ad6f374b877bc3b        IV71446m9c.150410.epkg.Z
    
	These sums should match exactly. The OpenSSL signatures in the tar
    file and on this advisory can also be used to verify the
    integrity of the fixes.  If the sums or signatures cannot be
    confirmed, contact IBM AIX Security at
    [email protected] and describe the discrepancy.
        
    Published advisory OpenSSL signature file location:

    http://aix.software.ibm.com/aix/efixes/security/openssl_advisory13.asc.sig
    https://aix.software.ibm.com/aix/efixes/security/openssl_advisory13.asc.sig
    ftp://aix.software.ibm.com/aix/efixes/security/openssl_advisory13.asc.sig       

openssl dgst -sha1 -verify &lt;pubkey_file&gt; -signature &lt;advisory_file&gt;.sig &lt;advisory_file&gt;

    openssl dgst -sha1 -verify &lt;pubkey_file&gt; -signature &lt;ifix_file&gt;.sig &lt;ifix_file&gt;

        
B. FIX AND INTERIM FIX INSTALLATION

    IMPORTANT: If possible, it is recommended that a mksysb backup
    of the system be created.  Verify it is both bootable and
    readable before proceeding.

    To preview a fix installation:

    installp -a -d fix_name -p all  # where fix_name is the name of the
                                    # fix package being previewed.
    To install a fix package:

    installp -a -d fix_name -X all  # where fix_name is the name of the
                                    # fix package being installed.

    Interim fixes have had limited functional and regression
    testing but not the full regression testing that takes place
    for Service Packs; however, IBM does fully support them.

    Interim fix management documentation can be found at:

    http://www14.software.ibm.com/webapp/set2/sas/f/aix.efixmgmt/home.html

    To preview an interim fix installation:

    emgr -e ipkg_name -p         # where ipkg_name is the name of the
                                 # interim fix package being previewed.

    To install an interim fix package:

    emgr -e ipkg_name -X         # where ipkg_name is the name of the
                                 # interim fix package being installed.

V. WORKAROUNDS

No workarounds.

VI. CONTACT US:

If you would like to receive AIX Security Advisories via email,
please visit "My Notifications":

    http://www.ibm.com/support/mynotifications

To view previously issued advisories, please visit:

    http://www14.software.ibm.com/webapp/set2/subscriptions/onvdq

Comments regarding the content of this announcement can be
directed to:

    [email protected]

To obtain the OpenSSL public key that can be used to verify the
signed advisories and ifixes:

    Download the key from our web page:

    http://www.ibm.com/systems/resources/systems_p_os_aix_security_pubkey.txt

To obtain the PGP public key that can be used to communicate
securely with the AIX Security Team via [email protected] you
can either:

    A. Download the key from our web page:

        http://www.ibm.com/systems/resources/systems_p_os_aix_security_pgppubkey.txt

    B. Download the key from a PGP Public Key Server. The key ID is:

        0x28BFAA12

Please contact your local IBM AIX support center for any
assistance.

VII. REFERENCES:

Note: Keywords labeled as KEY in this document are used for parsing purposes.

eServer is a trademark of International Business Machines
Corporation.  IBM, AIX and pSeries are registered trademarks of
International Business Machines Corporation.  All other trademarks
are property of their respective holders.

Complete CVSS Guide: http://www.first.org/cvss/cvss-guide.html
On-line Calculator V2: http://nvd.nist.gov/cvss.cfm?calculator&adv&version=2

X-Force Vulnerability Database: https://exchange.xforce.ibmcloud.com/vulnerabilities/101674
X-Force Vulnerability Database: https://exchange.xforce.ibmcloud.com/vulnerabilities/101666
X-Force Vulnerability Database: https://exchange.xforce.ibmcloud.com/vulnerabilities/101668
X-Force Vulnerability Database: https://exchange.xforce.ibmcloud.com/vulnerabilities/101675
X-Force Vulnerability Database: https://exchange.xforce.ibmcloud.com/vulnerabilities/101669
X-Force Vulnerability Database: https://exchange.xforce.ibmcloud.com/vulnerabilities/101670
X-Force Vulnerability Database: https://exchange.xforce.ibmcloud.com/vulnerabilities/101671
CVE-2015-0209 : https://vulners.com/cve/CVE-2015-0209
CVE-2015-0286 : https://vulners.com/cve/CVE-2015-0286
CVE-2015-0287 : https://vulners.com/cve/CVE-2015-0287
CVE-2015-0288 : https://vulners.com/cve/CVE-2015-0288
CVE-2015-0289 : https://vulners.com/cve/CVE-2015-0289
CVE-2015-0292 : https://vulners.com/cve/CVE-2015-0292
CVE-2015-0293 : https://vulners.com/cve/CVE-2015-0293

*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the
impact of this vulnerability in their environments by accessing the links
in the Reference section of this Flash.

Note: According to the Forum of Incident Response and Security Teams
(FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry
open standard designed to convey vulnerability severity and help to
determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES
"AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE
RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY
VULNERABILITY.

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

EPSS

0.944

Percentile

99.2%