Security Bulletin
Summary
An SSL/TLS connection initiated using a malformed certificate chain from a Client or Server could contain a circular reference. The circular reference can cause the chain building logic to loop and lead to an engine crash or an engine hang when it runs out of memory.
Vulnerability Details
*CVSS:
CVE ID: CVE-2013-6747
CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/89863 for the current score
CVSS Environmental Score*: Undefined:
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:C)
Affected Products and Versions
Informix Server 11.50 using IBM GSKit versions up to 7.0.4.47
Informix Server 11.70 and 12.10 using IBM GSKit versions up to 8.0.50.13
Remediation/Fixes
|
Product | Remediation/First Fix |
| Informix Server 12.10 | Upgrade to 12.10.xC3 or download and install GSKit (see next section) |
| Informix Server 11.70 | Download and install the updated GSKit (see next section) |
| Informix Server 11.50 | Download and install the updated GSKit (see next section) |
- Download the appropriate GSKit using the following table:
- Unix/Linux instructions:
| Required GSKit version | GSKit link |
Informix Client SDK 3.70 (all platforms other than HP-UX PA-RISC) | 8.0.50.17 | AIX (pSeries_32, pSeries_64 ) HP-UX (Itanium_32, Itanium_64 ) Linux (x86_32, x86_64, pSeries_64, zSeries_32, zSeries_64) Solaris (SPARC_32, SPARC_64, x86_32, x86_64) Windows (x86_32, x86_64) |
| 7.0.4.48 | HP-UX (PA-RISC_32, PA-RISC_64) |
| 7.0.4.48 | AIX (pSeries_32, pSeries_64) HP-UX (Itanium_32, Itanium_64, PA-RISC_32, PA-RISC_64) Linux (x86_32, x86_64, pSeries_64, zSeries_32, zSeries_64) Solaris (SPARC_32, SPARC_64, x86_32, x86_64) Windows (x86_32, x86_64) |
- 1. Copy the downloaded tar file(s) to $INFORMIXDIR/gskit. Note: the old gskit .tar files must be removed or renamed to not end in .tar.
2. Bring the database server offline. (e.g. onmode -ky).
3. Change to the GSKit directory (cd $INFORMIXDIR/gskit).
4. As root, run "./installgskit".
5. To verify the installation, run the appropriate command (i.e. gsk7ver, gsk7ver_64, gsk8ver or gsk8ver_64) for the GSKit you installed. The new version should be 7.0.4.48 or 8.0.50.17.
- 1. Copy/download the gsk7d_7.0.4.48_win32.exe file to C:\tmp.
2. Start the 'cmd' program.
3. Change to the C:\temp directory (cd c:\tmp).
4. Run "gsk7d_7.0.4.48_win32.exe /D tmp". This will extract the files to the C:\tmp\tmp directory.
5. Change to the C:\tmp\tmp directory (cd C:\tmp\tmp).
6. Run "setup GSK7BAS". Accept all of the defaults.
7. To verify the installation, run gsk7ver to verify the installation. The new version should be 7.0.4.48.
- 1. Copy/download the appropriate file (gsk7d_7.0.4.48_win64.msi, gsk8ssl32.exe or gsk8ssl64.exe) to C:\tmp.
2. Using Windows Explorer, double click on the downloaded file. This will start Install Shield. Accept all of the defaults.
3. To verify the installation, run the appropriate command (i.e. gsk7ver_64, gsk8ver or gsk8ver_64) for the GSKit you installed. The new version should be 7.0.4.48 or 8.0.50.17.
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References
Change History
6 April 2014: Original version published.
*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.
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Document Information
Modified date:
03 June 2021
UID
swg21668664