Security Bulletin
Summary
IBM Informix Dynamic Server could crash when a specific function is called with an out-of-range parameter within the Spatial Datablade. A user would need access to the server and the ability to execute arbitrary sql to call this function.
If you ARE NOT USING the spatial technology, you can disable usage by going to the
$INFORMIXDIR/extend directory and renaming the Spatial Datablade directory, e.g.:
mv spatial.8.22.* do.not.use
If you ARE USING the spatial technology, you will need to:
1. Download the appropriate fixed blade(s) from Fix Central
2. Follow the instructions in the embedded README file
To verify the corrected Spatial Datablade is in use, you can do the following:
$ cat $INFORMIXDIR/extend/spatial.8.22.*/include/pedef.h | grep "New at 10.8.1"
and on Windows:
$ type $INFORMIXDIR/extend/spatial.8.22.*/include/pedef.h | find "New at 10.8.1"
Vulnerability Details
CVEID: CVE-2020-4799
Description: IBM Informix spatial could allow a local user to execute commands as privileged user due to an Out-Of-Bounds write vulnerability
CVSS Base Score: 7.8
CVSS Temporal Score: see https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-2020-4799 for more information
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products and Versions
| Affected IBM Informix Dynamic Server | Affected Version |
| Informix Dynamic Server | 12.10 |
| Informix Dynamic Server | 14.10 |
Remediation/Fixes
| Product |
Server
VRMF
|
Blade
VRMF
|
Remediation / First Fix |
| Spatial Datablade for Informix Dynamic Server |
12.10.XC7 through
12.10.XC14
and
14.10.XC1
through
14.10.XC3
|
8.22.XC2 | https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~Information%20Management&product=ibm/Information+Management/Informix+Tools&release=12.822.xc2.1060&platform=All&function=all |
| 14.10.XC4W1 | 8.22.XC4 | https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm%7EInformation%20Management&product=ibm/Information+Management/Informix+Tools&release=14.822.xc4.1080&platform=All&function=all |
Workarounds and Mitigations
Get Notified about Future Security Bulletins
References
Acknowledgement
The vulnerability was reported to IBM by Anonymous working with Trend Micro Zero Day Initiative.
Change History
07 Oct 2020: Initial Publication
08 Oct 2020: Revised Publication
*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 Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
06 April 2023
UID
ibm16343587