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AUSCERT External Security Bulletin Redistribution
ESB-2020.2256.2
IBM Db2 could allow a local user to obtain sensitive
information using a race condition of a symbolic link
12 October 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Db2
Publisher: IBM
Operating System: AIX
Linux variants
Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-4386
Original Bulletin:
https://www.ibm.com/support/pages/node/6242342
Revision History: October 12 2020: Linux/Unix images updated V9.7
July 1 2020: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
IBM Db2 is vulnerable to an information disclosure. (CVE-2020-4386)
Security Bulletin
Summary
IBM Db2 could allow a local user to obtain sensitive information using a race
condition of a symbolic link.
Vulnerability Details
CVEID: CVE-2020-4386
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server)
could allow a local user to obtain sensitive information using a race condition
of a symbolic link.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
179268 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
Affected Products and Versions
All fix pack levels of IBM Db2 V9.7, V10.1, V10.5, V11.1, and V11.5 editions on
all platforms are affected.
Remediation/Fixes
Customers running any vulnerable fixpack level of an affected Program can
download the special build containing the interim fix for this issue from Fix
Central. These special builds are available based on the most recent fixpack
level for each impacted release: V9.7 FP11, V10.1 FP6, V10.5 FP11, 11.1 FP5,
and V11.5 GA. They can be applied to any affected fixpack level of the
appropriate release to remediate this vulnerability.
+-------+----------------+-------+--------------------------------------------+
|Release|Fixed in fix |APAR |Download URL |
| |pack | | |
+-------+----------------+-------+--------------------------------------------+
|V9.7 |TBD |IT32740|Special Build for V9.7 FP11: |
| | | | |
| | | |AIX 64-bit |
| | | |HP-UX 64-bit |
| | | |Linux 32-bit, x86-32 |
| | | |Linux 64-bit, x86-64 |
| | | |Linux 64-bit, POWER big endian |
| | | |Linux 64-bit, System z, System z9 or zSeries|
| | | |Solaris 64-bit, SPARC |
| | | |Solaris 64-bit, x86-64 |
| | | |Windows 32-bit, x86 |
| | | |Windows 64-bit, x86 |
| | | | |
| | | |Note: Windows images updated 2020/08/18 |
| | | | |
| | | |Linux/Unix images updated 2020/10/09 |
+-------+----------------+-------+--------------------------------------------+
|V10.1 |TBD |IT32739|Special Build for V10.1 FP6: |
| | | | |
| | | |AIX 64-bit |
| | | |HP-UX 64-bit |
| | | |Linux 32-bit, x86-32 |
| | | |Linux 64-bit, x86-64 |
| | | |Linux 64-bit, POWER big endian |
| | | |Linux 64-bit, System z, System z9 or zSeries|
| | | |Solaris 64-bit, SPARC |
| | | |Solaris 64-bit, x86-64 |
| | | |Windows 32-bit, x86 |
| | | |Windows 64-bit, x86 |
+-------+----------------+-------+--------------------------------------------+
|V10.5 |TBD |IT32738|Special Build for V10.5 FP11: |
| | | | |
| | | |AIX 64-bit |
| | | |HP-UX 64-bit |
| | | |Linux 32-bit, x86-32 |
| | | |Linux 64-bit, x86-64 |
| | | |Linux 64-bit, POWER big endian |
| | | |Linux 64-bit, POWER little endian |
| | | |Linux 64-bit, System z, System z9 or zSeries|
| | | |Solaris 64-bit, SPARC |
| | | |Solaris 64-bit, x86-64 |
| | | |Windows 32-bit, x86 |
| | | |Windows 64-bit, x86 |
| | | |Inspur |
+-------+----------------+-------+--------------------------------------------+
|V11.1 |TBD |IT32737|Special Build for V11.1 FP5: |
| | | | |
| | | |AIX 64-bit |
| | | |Linux 32-bit, x86-32 |
| | | |Linux 64-bit, x86-64 |
| | | |Linux 64-bit, POWER little endian |
| | | |Linux 64-bit, System z, System z9 or zSeries|
| | | |Solaris 64-bit, SPARC |
| | | |Windows 32-bit, x86 |
| | | |Windows 64-bit, x86 |
+-------+----------------+-------+--------------------------------------------+
|V11.5 |TBD |IT32714|Build for V11.5.4 GA: |
| | | | |
| | | |https://www.ibm.com/support/pages/node/ |
| | | |6241724 |
+-------+----------------+-------+--------------------------------------------+
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
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On call after hours for member emergencies only.
===========================================================================
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