Perl 5.10.x allows context-dependent attackers to cause a denial of service (NULL pointer dereference and application crash) by leveraging an ability to inject arguments into a (1) getpeername, (2) readdir, (3) closedir, (4) getsockname, (5) rewinddir, (6) tell, or (7) telldir function call.

References

• https://nvd.nist.gov/vuln/detail/CVE-2011-0761
• https://exchange.xforce.ibmcloud.com/vulnerabilities/67355
• http://securityreason.com/securityalert/8248
• http://securitytracker.com/id?1025507
• http://www.securityfocus.com/archive/1/517916/100/0/threaded
• http://www.securityfocus.com/bid/47766
• http://www.toucan-system.com/advisories/tssa-2011-03.txt