CVE-2009-1786

Published: May 26, 2009Modified: Apr 23, 2026

6.9

Vector

AV:L/AC:M/Au:N/C:C/I:C/A:C

Exploitability: 3.4 / Impact: 10.0

Source: NVD

Description

The malloc subsystem in libc in IBM AIX 5.3 and 6.1 allows local users to create or overwrite arbitrary files via a symlink attack on the log file associated with the MALLOCDEBUG environment variable.

Affected (2)

Products: Ibm: Aix

Ibm

1 product

Aix

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Ibm Aix	Version 5.3
Ibm Aix	Version 6.1

Related CWEs

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (34)

http://aix.software.ibm.com/aix/efixes/security/libc_advisory.asc

Source: cve@mitre.org

PatchVendor Advisory

http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=802

Source: cve@mitre.org

http://secunia.com/advisories/35146

Source: cve@mitre.org

Vendor Advisory

http://securitytracker.com/id?1022261

Source: cve@mitre.org

Patch

http://www.ibm.com/support/docview.wss?uid=isg1IZ50121

Source: cve@mitre.org

http://www.ibm.com/support/docview.wss?uid=isg1IZ50129

Source: cve@mitre.org

http://www.ibm.com/support/docview.wss?uid=isg1IZ50139

Source: cve@mitre.org

http://www.ibm.com/support/docview.wss?uid=isg1IZ50445

Source: cve@mitre.org

http://www.ibm.com/support/docview.wss?uid=isg1IZ50447

Source: cve@mitre.org

http://www.ibm.com/support/docview.wss?uid=isg1IZ50500

Source: cve@mitre.org

http://www.ibm.com/support/docview.wss?uid=isg1IZ50517

Source: cve@mitre.org

http://www.osvdb.org/54617

Source: cve@mitre.org

http://www.securityfocus.com/bid/35034

Source: cve@mitre.org

http://www.vupen.com/english/advisories/2009/1380

Source: cve@mitre.org

Vendor Advisory

https://exchange.xforce.ibmcloud.com/vulnerabilities/50636

Source: cve@mitre.org

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6276

Source: cve@mitre.org

https://www.exploit-db.com/exploits/9306

Source: cve@mitre.org

http://aix.software.ibm.com/aix/efixes/security/libc_advisory.asc