IBM DB2 buildDasPaths() DASPROF environment variable buffer overflow
| db2-environment-variables-bo (36067) |  High Risk |
Description:
IBM DB2 is vulnerable to a stack-based buffer overflow in the buildDasPaths() function. By setting an overly long DASPROF environment variable, a local attacker could overflow a buffer and execute arbitrary code on the system with root privileges.
Platforms Affected:
- IBM, DB2 Universal Database 8.1 FP13
- IBM, DB2 Universal Database 8.1 FP14
- IBM, DB2 Universal Database 8.1 FP1
- IBM, DB2 Universal Database 8.1 FP2
- IBM, DB2 Universal Database 8.1 FP3
- IBM, DB2 Universal Database 8.1 FP4
- IBM, DB2 Universal Database 8.1 FP5
- IBM, DB2 Universal Database 8.1 FP6
- IBM, DB2 Universal Database 8.1 FP7
- IBM, DB2 Universal Database 8.1 FP8
- IBM, DB2 Universal Database 8.1 FP9
- IBM, DB2 Universal Database 8.1 FP10
- IBM, DB2 Universal Database 8.1 FP11
- IBM, DB2 Universal Database 8.1 FP12
- IBM, DB2 Universal Database 8.1
Remedy:
For DB2 Universal Database 8:
Refer to IBM APAR IY99311 for patch, upgrade, or suggested workaround information. See References.
For DB2 Universal Database 9.1:
Refer to IBM APAR IY97346 for patch, upgrade, or suggested workaround information. See References.
Consequences:
Gain Privileges
References:
- APAR IY95081, MULTIPLE DB2 ENVIRONMENT VARIABLES CAUSE BUFFER OVERFLOW VULNERABILITY AND SYMLINK OVERWRITE VULNERABILITY at http://www-1.ibm.com/support/docview.wss?rs=203&context=SW000&dc=DB550&dc=D100&q1=Security+vulnerability&uid=swg1IY95081&loc=en_US&cs=UTF-8&lang=all.
- APAR IY97346, DASPROF env variable - Buffer Overflow Vulnerability at http://www-1.ibm.com/support/docview.wss?uid=swg1IY97346.
- APAR IY99311, DASPROF env variable - Buffer Overflow Vulnerability at http://www-1.ibm.com/support/docview.wss?uid=swg1IY99311.
- iDefense Labs PUBLIC ADVISORY: 08.16.07, IBM DB2 Universal Database buildDasPaths Buffer Overflow Vulnerability at http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=583.
- VIM Mailing list, Sat Aug 18 21:05:56 UTC 2007, Recent DB2 Vulnerabilities at http://www.attrition.org/pipermail/vim/2007-August/001765.html.
- BID-25339: IBM DB2 Universal Database Multiple Unspecified Vulnerabilities
- CVE-2007-4276: Stack-based buffer overflow in IBM DB2 UDB 8 before Fixpak 15 and 9.1 before Fixpak 3 allows attackers to execute arbitrary code via a long DASPROF and possibly other environment variables, which are copied into the buildDasPaths buffer.
- SA26471: IBM DB2 Multiple Vulnerabilities
- SECTRACK ID: 1018581: IBM DB2 Multiple Bugs Let Local Users Gain Root Privileges
- VUPEN/ADV-2007-2912: IBM DB2 Universal Database Denial of Service and Code Execution Issues
Reported:
Aug 14, 2007
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