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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.0936
Security Bulletin: Multiple Security Vulnerabilties have been fixed in the
  IBM Security Access Manager and IBM Security Verify Access appliances.
                               17 March 2021

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Security Access Manager Appliance
Publisher:         IBM
Operating System:  Network Appliance
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
                   Access Confidential Data        -- Remote/Unauthenticated
                   Reduced Security                -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-17498 CVE-2019-15903 CVE-2019-14834
                   CVE-2019-5482 CVE-2018-20843 CVE-2017-12652

Reference:         ESB-2021.0931
                   ESB-2021.0386

Original Bulletin: 
   https://www.ibm.com/support/pages/node/6430709

- --------------------------BEGIN INCLUDED TEXT--------------------

Multiple Security Vulnerabilties have been fixed in the IBM Security Access
Manager and IBM Security Verify Access appliances.

Document Information

Document number    : 6430709
Modified date      : 16 March 2021
Product            : IBM Security Access Manager Appliance
Software version   : 9.0.7.2
Operating system(s): Platform Independent

Summary

Multiple Security Vulnerabilities have been fixed in both the IBM Security
Access Manager and IBM Security Verify Access appliances.

Vulnerability Details

CVEID: CVE-2019-17498
DESCRIPTION: libssh2 is vulnerable to a denial of service, caused by an
out-of-bounds read when connecting to a malicious SSH server that sends a
disconnect message. A remote attacker could exploit this vulnerability to cause
a denial of service or obtain sensitive information.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
169461 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)

CVEID: CVE-2018-20843
DESCRIPTION: libexpat is vulnerable to a denial of service, caused by an error
in the XML parser. By persuading a victim to open a specially-crafted file, a
remote attacker could exploit this vulnerability to consume all available CPU
resources.
CVSS Base score: 3.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
163073 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2019-15903
DESCRIPTION: libexpat is vulnerable to a denial of service, caused by a
heap-based buffer over-read in XML_GetCurrentLineNumber. By using a
specially-crafted XML input, a remote attacker could exploit this vulnerability
to cause the application to crash.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
166560 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2017-12652
DESCRIPTION: An unspecified error with improper validation of length of chunks
against the user limit in libpng has an unknown impact and attack vector.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
163589 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID: CVE-2019-14834
DESCRIPTION: dnsmasq is vulnerable to a denial of service, caused by a memory
leak in the create_helper() function in /src/helper.c. By sending a specially
crafted request, a remote attacker could exploit this vulnerability to cause
the service to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
174256 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2019-5482
DESCRIPTION: cURL libcurl is vulnerable to a heap-based buffer overflow, caused
by improper bounds checking by the tftp_receive_packet function. By sending
specially-crafted request containing an OACK without the BLKSIZE option, a
remote attacker could overflow a buffer and execute arbitrary code on the
system.
CVSS Base score: 6.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
166942 for the current score.
CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

Affected Products and Versions

+--------------------------+----------+
|Affected Product(s)       |Version(s)|
+--------------------------+----------+
|ISAM                      |9.0       |
+--------------------------+----------+
|IBM Security Verify Access|10.0.0    |
+--------------------------+----------+

Remediation/Fixes

+------------------------+----------+-------+---------------------------------+
|Affected Product        |Fixed VRMF|APAR   |Fix Availability                 |
+------------------------+----------+-------+---------------------------------+
|IBM Security Access     |9.0.7.2   |IJ30635|interim fix:                     |
|Manager                 |IF1       |       |9.0.7.2-ISS-ISAM-IF0001          |
+------------------------+----------+-------+---------------------------------+
|IBM Security Verify     |10.0.2.0  |IJ30635|interim fix:                     |
|Access                  |IF1       |       |10.0.1.0-ISS-ISVA-IF0001         |
+------------------------+----------+-------+---------------------------------+

Workarounds and Mitigations

None

Change History

16 Mar 2021: Initial Publication

Document Location

Worldwide

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