Ibm · Libc · CVE-2009-1786
Name of the Vulnerable Software and Affected Versions:
IBM AIX versions 5.3 through 6.1
Description:
The issue concerns the malloc subsystem in libc, which allows local users to create or overwrite arbitrary files via a symlink attack on the log file associated with the `MALLOCDEBUG` environment variable.
Recommendations:
For IBM AIX versions 5.3 through 6.1, consider restricting access to the `MALLOCDEBUG` environment variable to prevent exploitation. As a temporary workaround, avoid using the `MALLOCDEBUG` environment variable until a patch is available.